Home > Exterior Doors > Front Entry Doors Factory in Foshan China – Entry Doors for Houses, Modern Front Doors and Exterior Entry Door Specs with FOB Pricing
Front Entry Doors Factory in Foshan China – Entry Doors for Houses, Modern Front Doors and Exterior Entry Door Specs with FOB Pricing
Thermal-break aluminum front entry door with a vertical glazed sidelight and flush threshold, installed on a residential entrance.
A front entry door is the primary exterior door leaf on a dwelling. In the China export program the standard build is a thermally broken aluminum leaf, 40-70 mm thick, carrying an insulated glazing unit or a composite panel, hung on a matched aluminum frame with a multipoint lock. This article documents the construction, the size matrices used in the United States, United Kingdom, European Union and Australian markets, the hardware standards that govern locking, the coating specifications, the certification route for each destination, the production sequence, FOB price tables in USD, landed cost arithmetic, installation method, and delivered project data. All figures come from export production in Foshan, Guangdong.
Front Entry Door Anatomy: Leaf, Frame, Threshold and Hardware
A complete entry door assembly is a set of five component groups. Quoting each group separately is what makes a China factory quote comparable with a domestic one.
The Five Component Groups
Leaf – two aluminum skins (1.0-2.0 mm) bonded to an infill core, with a perimeter stile and rail extrusion. Leaf thickness runs 40 / 45 / 50 / 55 / 70 mm.
Frame – head, two jambs and a threshold, in depths of 65 / 75 / 85 / 100 mm, joined by corner keys and two-component adhesive.
Threshold – exposed (19-20 mm), rebated (14-16 mm) or flush (0-6 mm) profile, with or without a thermal break.
Hardware – hinges, multipoint lock, cylinder, lever or pull handle, closer, drop seal.
Sealing – EPDM or TPE gaskets in two or three chambers, plus brush or fin pile at the meeting stile on double configurations.
Leaf Core Options and Their Thermal Effect
The core determines most of the Ud number and a large part of the leaf weight. Four cores are in regular production.
Core type
Density (kg/m³)
Thermal conductivity (W/mK)
Typical leaf weight (900×2100 mm)
Cost adder (USD/m²)
Polyurethane foam (PU)
40-60
0.024
24-30 kg
$0 (baseline)
Aluminum honeycomb
30-45
0.310 (through cells)
18-22 kg
$6-11
Rock wool
60-120
0.038
34-42 kg
$9-16
XPS board
30-40
0.034
22-28 kg
$4-8
PU foam is the default for thermally broken leaves. Honeycomb is specified where the leaf must stay light for tall formats above 2.4 m. Rock wool is used where a 30-60 minute fire rating is required, because it holds integrity at temperature while PU does not.
Skin Thickness and Dent Resistance
Door skins are rolled from 3003-H14 or 5005-H34 sheet for paint-grade faces. Thickness selection follows traffic class: 1.0 mm for residential single dwellings, 1.2 mm for multi-unit entries, 1.5-2.0 mm for commercial or public entries. A 1.0 mm skin deflects 1.8-2.4 mm under a 200 N point load at mid-span of a 500 mm panel; a 1.5 mm skin deflects 0.7-0.9 mm under the same load.
Entry Doors for Houses: Size Matrices, Handing and Rough Openings
Entry doors for houses follow four different national size families. Ordering the wrong family is the single most common cause of a rejected shipment, so the matrix below is the first thing to confirm on a shop drawing.
Nominal Leaf Sizes by Market
Market
Nominal leaf size
Metric equivalent (mm)
Typical frame depth
Rough opening (mm)
United States
36 x 80 in
914 x 2032
75 / 100 mm
978 x 2083
United States (tall)
36 x 96 in
914 x 2438
100 mm
978 x 2489
United Kingdom
33 x 78 in
838 x 1981
70 / 75 mm
898 x 2031
European Union
900 x 2000
900 x 2000
75 / 85 mm
960 x 2050
European Union (tall)
1000 x 2100
1000 x 2100
85 mm
1060 x 2150
Australia
820 x 2040
820 x 2040
75 / 100 mm
880 x 2090
Australia (tall)
920 x 2340
920 x 2340
100 mm
980 x 2390
Rough opening values above assume a 10-12 mm shim gap per side and a 10 mm head gap. For a blockwork or masonry reveal, add 10 mm to both width and height; for a timber stud reveal, the nominal opening equals the frame plus 20 mm.
Handing: Left, Right, Inswing and Outswing
Handing is stated from the outside face of the building. An inswing leaf opens into the dwelling and puts the hinges on the interior, which protects the hinge pins from weather and attack but consumes 40-60 mm of hallway space. An outswing leaf keeps the interior floor clear and is required in some coastal wind zones, because positive design pressure pushes the leaf against its rebate instead of against the lock. Specify the handing on the shop drawing with a plan symbol, not with a written description: about 3 percent of rework orders in the Foshan export program trace back to a text-only handing note.
Sidelights, Transoms and Combinations
A sidelight is a fixed glazed panel beside the leaf, typically 300-600 mm wide. It ships as its own frame, coupled to the door frame with a mullion.
A transom is a fixed glazed panel above the leaf, 300-600 mm high. It adds head height without changing the leaf, and it is the cheapest way to reach a 2.7 m overall opening.
Sidelight adders run $85-160 per panel; transom adders run $70-130. Both are quoted per linear metre of coupled mullion for long runs.
Front Doors for Houses Modern: Panel Layouts and Glazing Ratios
Front doors for houses modern in this category are flat-panel leaves with a glazed insert. The layout is set at the design stage and fixes the glass area, which in turn drives the Ud number and the price.
Six Standard Layouts
Layout code
Description
Glazed area of a 900×2100 leaf
Ud with 24 mm break, Low-E DG
Layout adder
FL-01
Full flush panel, no glazing
0 %
1.42 W/m²K
$0
FL-02
Small square insert, upper third
11 %
1.51 W/m²K
$18-32
FL-03
Vertical full-height strip
19 %
1.58 W/m²K
$28-48
FL-04
Two vertical strips
27 %
1.66 W/m²K
$42-68
FL-05
Horizontal band, upper quarter
22 %
1.61 W/m²K
$34-56
FL-06
Full glazed leaf
72 %
1.92 W/m²K
$85-140
The Ud penalty for glazing is smaller than most buyers expect, because a modern Low-E double unit at Ug 1.1 W/m²K is close to the panel Ud of 0.9-1.1 W/m²K. Going from FL-01 to FL-06 costs about 0.50 W/m²K. Where a code path sets a hard Ud limit, a wide thermal break recovers it: the same FL-06 leaf on a 34 mm break with triple glazing lands at 1.14 W/m²K.
Glazing Ratio and Daylight
A full glazed leaf (FL-06) with 5 mm Low-E glass transmits 68-72 percent of visible light. Measured on a 1.9 m² leaf, that is 1.29-1.37 m² of effective glazing, which is enough to light a 12-16 m² entrance hall to 150-220 lux on an overcast day. A vertical strip (FL-03) at 19 percent gives 0.36 m² of effective glazing and 45-70 lux, which reads as a lit threshold rather than a lit hall.
Panel Relief Options
Flush – both faces flat, 0 mm relief. Lowest cost, easiest to clean, dominant in modern facades.
Grooved – a 3 x 2 mm routed line around the panel perimeter, 40-80 mm in from the edge. Adds $8-14.
Stepped – a 4-6 mm rebate between panel and stile, giving a shadow line. Adds $16-26.
Applied bar – a 20-40 mm aluminum bar bonded to the face to create a grid pattern. Adds $22-38.
Modern Front Doors: Powder Coating, PVDF and Anodizing Specifications
Modern front doors are specified by coating standard rather than by colour name. The standard fixes film thickness, salt spray hours and gloss retention, and it is the clause an inspector will check.
AAMA 2603 / 2604 / 2605 and Qualicoat
Specification
Minimum film (μm)
Salt spray (ASTM B117)
South Florida exposure
Typical use
Adder (USD/m²)
AAMA 2603
20
1,000 h
1 year
Interior doors, dry climates
$0
AAMA 2604
30
3,000 h
5 years
Standard exterior entry doors
$5-9
AAMA 2605
30 (70 % PVDF resin)
4,000 h humidity + 4,000 h salt
10 years
Coastal, high UV, dark colours
$11-18
Qualicoat Class 1
60
1,000 h
1 year
EU projects, EN 12206-1 route
$0
Qualicoat Class 2 (Seaside)
60 + pre-anodising
2,000 h
5 years
EU coastal projects
$7-12
Anodised AA20 (AAMA 611 Class I)
20 (oxide)
n/a – sealed oxide
5 years
Metallic finishes, high traffic
$9-15
Dark colours are the practical reason to move up a class. A 9011 graphite black powder at AAMA 2604 reaches 78-84 degrees Celsius surface temperature in summer sun in a subtropical climate, which accelerates chalking; the same colour at AAMA 2605 keeps 90 percent gloss after 5 years of Florida exposure versus 60-65 percent at 2604.
Wood Grain Sublimation
Sublimation transfer puts a 20-40 μm wood-grain layer over the powder base. The film is applied under vacuum at 190-205 degrees Celsius for 8-10 minutes, and the grain penetrates the coating rather than sitting on it. Oak, walnut, teak and eucalyptus patterns are stocked. Wood grain adds $12-20/m² and carries the same warranty as the underlying powder class. It is the standard answer when a planning authority requires a timber appearance on an aluminum body.
Colour Range and Lead Time Impact
Stock colours (9016 white, 7016 anthracite, 9005 black, 9006 white aluminium, 8017 chocolate brown): no lead time impact, no minimum batch.
Extended RAL range: 7-10 days added, 200 kg powder minimum per colour, which is roughly 120-160 m² of door area.
Custom match to a physical sample: 12-18 days added for laboratory formulation and a drawdown panel approval.
Dual colour (different internal and external finish, common when the interior is white and the exterior is dark): adds $9-15/m² and 4-6 days, because the leaf must be masked and coated twice.
Exterior Entry Doors: Air, Water, Wind and Thermal Test Data
Exterior entry doors are classified by three independent test results plus the whole-door thermal transmittance. The values below are factory test data on a 1000 x 2200 mm single leaf in a 75 mm frame.
EN 12207 Air Permeability, EN 12208 Water Tightness, EN 12210 Wind Resistance
Build tier
Air permeability (EN 12207)
Water tightness (EN 12208)
Wind resistance (EN 12210)
Cyclic wind (EN 12211)
Standard, 2 gaskets
Class 3 (600 Pa, 6.0 m³/h·m²)
Class 4A (150 Pa)
C3 / 1,200 Pa
50 cycles at 720 Pa
Mid, 3 gaskets + drop seal
Class 4 (600 Pa, 1.5 m³/h·m²)
Class 7A (300 Pa)
C4 / 1,600 Pa
50 cycles at 960 Pa
Premium, 3 gaskets + rebated threshold
Class 4 (600 Pa, 0.8 m³/h·m²)
Class 8A (450 Pa)
C5 / 2,000 Pa
50 cycles at 1,200 Pa
Impact / NOA build
Class 4 (600 Pa, 1.0 m³/h·m²)
Class 9A (600 Pa)
C5 / 2,400 Pa
TAS 203: 9,000 cycles
A reading of Class 7B under EN 12208 is not lower than 7A – it means the door was tested unprotected and reached 300 Pa. Class 7A means the same 300 Pa was reached with the door protected by an external screen or reveal. Doors without a porch or canopy should be specified to the B classification, because the B number is the one that applies once installed.
Design Pressure for North American and Australian Destinations
Destination / standard
Performance class
Design pressure
Water test pressure
Air infiltration limit
NAFS-11 R (residential)
R-PG25
±1,200 Pa (25 psf)
180 Pa (3.75 psf)
1.5 L/s·m²
NAFS-11 LC (light commercial)
LC-PG40
±1,900 Pa (40 psf)
290 Pa (6.0 psf)
1.5 L/s·m²
NAFS-11 CW (commercial)
CW-PG50
±2,400 Pa (50 psf)
360 Pa (7.5 psf)
1.5 L/s·m²
Miami-Dade HVHZ
Large missile
±3,350 Pa (70 psf)
TAS 202 + 203
ASTM E283
AS 2047 (Australia) N3
N3
±1,000 Pa
300 Pa
5.0 L/s·m²
AS 2047 (Australia) N5
N5
±2,000 Pa
450 Pa
5.0 L/s·m²
Whole-Door Ud Values by Configuration
Thermal break
Glazing
Panel core
Ud (W/m²K)
Applies to
None
5 + 12A + 5 clear
PU 40 kg/m³
3.10 – 3.40
Interior faces, garages
14.8 mm PA66GF25
5 + 12A + 5 clear
PU 40 kg/m³
2.20 – 2.40
Warm climates, no code limit
20 mm PA66GF25
5 Low-E + 16Ar + 5
PU 45 kg/m³
1.72 – 1.88
US IECC zones 3-4
24 mm PA66GF25
5 Low-E + 16Ar + 5
PU 45 kg/m³
1.55 – 1.70
US IECC zones 4-5, UK Part L
30 mm PA66GF25
5 Low-E + 12Ar + 5 + 12Ar + 5
PU 55 kg/m³
1.22 – 1.34
US zones 6-7, EU retrofit
34 mm PA66GF25 + foamed cavity
Triple Low-E, 2 x argon
Rock wool 90 kg/m³
0.95 – 1.12
Passive house component, EU new build
Ud is calculated to EN ISO 10077-1 or simulated to NFRC 100 for the North American market. The two methods give different numbers for the same door – NFRC uses a fixed 1,000 x 2,000 mm residential door size and different boundary conditions, and typically reports 0.05-0.12 W/m²K lower than the EN method on the same assembly.
Front Entry Door Hardware: Hinge, Lock and Closer Standards
Hardware is where an entry door either meets the local security standard or fails it. Six product standards cover the components.
Locking Standards: ANSI/BHMA and EN
Component
US standard
EU standard
Grade to specify
Test duty
Mortise lock
ANSI/BHMA A156.13
EN 12209
Grade 1 / EN 12209 Grade 6
1,000,000 cycles (Gr 1) / 200,000 (EN 6)
Bored / cylindrical lock
ANSI/BHMA A156.2
EN 12209
Grade 1 / Grade 6
800,000 / 200,000 cycles
Multipoint lock
ANSI/BHMA A156.36
EN 15685
Grade 1 / Grade 5
300,000 cycles
Cylinder
ANSI/BHMA A156.5
EN 1303
Grade 1 / 3-star (EN 1303:2015)
Drill, pick, bump, snap resistance
Lever handle / furniture
ANSI/BHMA A156.13
EN 1906
Grade 1 / Category of use 4
200,000 cycles (EN 1906 grade 7)
Single-axis hinge
ANSI/BHMA A156.1
EN 1935
Grade 1 / Grade 13 (160 kg)
200,000 cycles
Door closer
ANSI/BHMA A156.4
EN 1154
Grade 1 / EN power size 3-5
500,000 cycles (Gr 1) / 500,000 (EN)
Multipoint Locking and Burglar Resistance
A multipoint lock engages the frame at three or more points from a single handle throw. The configurations in production are:
3-point – latch plus two shootbolts into the head and sill. Standard on leaves up to 2,200 mm.
5-point – latch, two hook bolts, two shootbolts. Standard on leaves 2,200-2,600 mm.
8-point – as 5-point plus three mushroom cams on the lock side. Specified for EN 1627 RC2 and RC2N.
Hook bolts resist prying better than straight shootbolts; mushroom cams resist spreading of the leaf from the frame. RC2 requires the assembly (leaf, frame, glazing, cylinder) to be tested together to EN 1627, not the lock alone.
For UK projects, PAS 24:2022 is the enhanced-security document referenced by Approved Document Q. It is an assembly test that includes manual attack with a screwdriver, shim, knife and the specified tool set for 3 minutes of attack time, plus a 6 N·m cylinder torque test and a 1,000 N lever load in each direction. Certification to PAS 24 is a prerequisite for the Secured by Design police mark; the factory holds test evidence for the exterior security door range and applies the same hardware set to entry doors.
Hinge Count, Load Rating and Corrosion
Hinge quantity follows leaf height and weight: two hinges to 2,000 mm, three to 2,400 mm, four above 2,400 mm or above 60 kg. EN 1935 grade 11 carries 120 kg, grade 13 carries 160 kg, grade 14 carries 200 kg on three hinges. Corrosion resistance is stated to EN 1670 on a 1-5 scale; grade 4 (240 h neutral salt spray) is the minimum for an exposed exterior face and grade 5 (480 h) is specified within 5 km of a coastline. Hinges on outswing leaves must be non-removable-pin or fitted with security studs, otherwise the leaf can be lifted off from the outside.
Electronic Access and Smart Locks
Fingerprint and keypad modules mounted on the leaf, powered by 4 x AA cells, 8-12 month service interval on 20 operations per day. Adds $95-180.
Motorised multipoint lock that drives the existing gearbox, wired through the frame with a concealed loop transfer. Adds $180-260 plus $22-38 for the transfer.
Pre-drilled and reinforced provision for a third-party retrofit lock, at no cost, if specified at order stage. Retrofitting after glazing requires a new leaf.
Cylinder must remain a mechanical override. Most insurance policies in the UK and EU require a key override on any electronic entry lock.
Aluminum Alloy, Temper and Profile Wall Thickness
Entry door profiles are extruded from the 6xxx series. The alloy and temper set the mechanical properties, and the wall thickness sets how large a leaf can be built without deflection.
Alloy and Temper Mechanical Properties (EN 755-2)
Alloy and temper
Tensile strength Rm (MPa)
Yield Rp0.2 (MPa)
Elongation (%)
Where used in an entry door
6060-T66
215
160
8
Thin-wall decorative trim, glazing beads
6063-T5
160
110
8
Standard stiles, rails, frame profiles
6063-T6
205
180
8
Reinforced stiles on leaves above 2.4 m
6061-T6
260
240
8
Hinge reinforcement plates, heavy threshold bodies
6082-T6
310
260
10
Structural mullions in coupled sidelight runs
3003-H14 (sheet)
150
120
5
Door skins, 1.0-2.0 mm
5005-H34 (sheet)
170
150
5
Anodising-grade door skins
Billets are primary aluminum to GB/T 1196 with a mill certificate giving the heat number; each extrusion batch is traceable to the billet cast. Secondary alloy is used only on non-structural trim and is declared on the order if requested.
Wall Thickness Selection by Leaf Size
Profile wall
Max leaf height (single)
Max leaf width (single)
Wind class ceiling
Relative cost
1.4 mm
2,100 mm
950 mm
EN 12210 C3
baseline
1.6 mm
2,300 mm
1,000 mm
EN 12210 C3/C4
+ 6 %
1.8 mm
2,500 mm
1,100 mm
EN 12210 C4
+ 13 %
2.0 mm
2,700 mm
1,200 mm
EN 12210 C5
+ 21 %
2.2 mm
3,000 mm
1,200 mm
EN 12210 C5 / AW class
+ 30 %
Wall thickness is measured on the main load-bearing chamber with an ultrasonic gauge at three points per profile length. GB/T 5237.1 allows a -0.05 mm tolerance on a nominal 1.4 mm wall; buyers shipping to a market with a mandatory minimum (for example 1.4 mm for residential doors in several Australian states) should specify the nominal plus tolerance explicitly on the drawing.
Deflection Check for a Tall Leaf
For a 1,100 x 2,600 mm leaf on 1.8 mm wall under 1,600 Pa design pressure, the stile behaves as a simply supported beam on hinges 2,200 mm apart. Second moment of area for the stile section is about 22.4 x 10⁴ mm⁴; elastic modulus of aluminum is 70,000 MPa. Mid-span deflection works out at about 9.6 mm, which is L/229 and inside the L/200 limit that most standards apply to door leaves under design pressure. At 2.0 mm wall the same leaf deflects 7.9 mm (L/278).
Thermal Break: Strip Material, Width and Ud Arithmetic
The thermal break is the polyamide strip that separates the inner and outer aluminum halves. It is the single component that decides whether a door can meet an energy code.
PA66GF25 Strip Specification
Material: polyamide 66 with 25 percent glass fibre (PA66GF25), to EN ISO 1874-2 and the Qualicoat / GSB approved strip lists.
Transverse tensile strength: minimum 80 N/mm of strip length at 23 degrees Celsius, and minimum 45 N/mm at 80 degrees Celsius, per EN 14024.
Charpy impact: minimum 35 kJ/m² unnotched at 23 degrees Celsius; 15 kJ/m² after 1,000 h of accelerated ageing.
Insertion: roll-in process at 230-250 degrees Celsius with the profile pre-heated, producing a mechanical interlock in the knurled channel rather than an adhesive bond.
Widths stocked: 14.8 / 18.6 / 20 / 24 / 30 / 34 mm. Wider strips lower Ud and raise cost by roughly $3-5 per m² of door per 6 mm of width.
Worked Ud Calculation (EN ISO 10077-1)
For a 1,000 x 2,200 mm leaf on a 24 mm break with a 5 Low-E + 16Ar + 5 glazed insert at 27 percent glazed area, the calculation runs:
Term
Symbol
Value
Note
Door leaf area
Ad
2.20 m²
1,000 x 2,200 mm
Frame area
Af
0.68 m²
Perimeter x 100 mm visible width
Panel area
Ap
1.61 m²
Leaf minus glazing
Glazing area
Ag
0.59 m²
27 percent of leaf
Glazing perimeter
lg
3.26 m
Linear thermal transmittance path
Panel U-value
Up
1.05 W/m²K
45 kg/m³ PU core, measured
Frame U-value
Uf
2.10 W/m²K
24 mm break, 75 mm depth
Glazing U-value
Ug
1.10 W/m²K
5 Low-E + 16Ar + 5, EN 673
Spacer psi
Ψg
0.040 W/mK
Warm-edge spacer
Result Ud
Ud
1.44 W/m²K
Area-weighted, EN ISO 10077-1
Substituting an aluminium spacer for the warm-edge spacer moves Ψg from 0.040 to 0.068 W/mK and raises Ud from 1.44 to 1.49 W/m²K. The warm-edge spacer costs $4-7 per door and is the cheapest single thermal upgrade available.
Breaking the Frame Bridge at the Threshold
The threshold is the most common thermal weak point and the most common condensation complaint. A solid aluminium threshold on a broken frame creates a direct metal path from outside to inside; surface temperature on the inner face drops to 8-11 degrees Celsius in a 5 degree Celsius exterior with 20 degrees Celsius interior at 50 percent relative humidity, which is below the 12.6 degrees Celsius dew point. A thermally broken threshold with a polyamide insert raises the inner face to 15-17 degrees Celsius and removes the condensation. The adder is $26-48 per set and it should be treated as mandatory in heating climates.
Condensation Resistance Check
EN ISO 13788 gives the temperature factor fRsi = (θsi – θe) / (θi – θe). At 20 degrees Celsius interior, 0 degrees Celsius exterior and 50 percent relative humidity, the minimum fRsi to avoid surface condensation is 0.52. A non-broken threshold returns fRsi 0.42-0.48. A 24 mm break with a broken threshold returns fRsi 0.58-0.64. A 34 mm break with foamed cavities and a broken threshold returns fRsi 0.68-0.74, which is the range required for mould-free operation at 60 percent relative humidity.
Glazing and Safety Glass: Build-Ups, Standards and Acoustic Data
Any glazed area in a door is safety glass by regulation in every market covered here. The build-up then sets Ug, Rw, light transmittance and solar gain.
Glazing Build-Ups and Performance
Build-up
Ug (W/m²K)
Rw (dB)
Light transmittance
SHGC
Weight (kg/m²)
5 + 12A + 5 clear
2.70
30
0.78
0.72
25
5 Low-E + 16Ar + 5
1.10
31
0.71
0.58
25
6 Low-E + 16Ar + 6
1.10
33
0.70
0.57
30
5 + 12A + 6.38 laminated
2.60
36
0.76
0.62
32
6.38 Low-E laminated + 16Ar + 6
1.10
38
0.68
0.49
38
5 Low-E + 12Ar + 5 + 12Ar + 5
0.60
34
0.62
0.45
37
6 + 12A + 6 (impact, HVHZ)
2.60
35
0.75
0.55
36
Safety Glass Standards
EN 12150 – thermally toughened soda lime silicate safety glass. Fragmentation requirement: minimum 40 particles in any 50 x 50 mm zone on a 360 x 1,100 mm test piece.
EN 12600 – pendulum impact classification, reported as a three-part code such as 1B1. Door glazing is normally specified to class 1B1 (1,200 mm drop height).
ANSI Z97.1 / CPSC 16 CFR 1201 – US impact requirement for doors. Class A (400 ft-lb) applies to doors; CPSC Cat I is the equivalent federal requirement.
EN 14449 / EN 12543 – laminated glass and laminated safety glass. PVB interlayer thickness 0.38 / 0.76 / 1.52 mm; ionoplast (SentryGlas) at 0.89 mm is used for HVHZ impact builds.
EN 1279 – insulating glass unit durability. Parts 2 and 3 cover moisture penetration and gas leakage; the factory test requires a dew point below -40 degrees Celsius after cycling.
Tempered glass carries a permanent ceramic-frit mark in a corner giving the standard, the manufacturer and the plant code. An unmarked pane in a door leaf is a compliance failure in every market listed and is grounds for rejection at inspection.
Decorative and Functional Glass Options
Acid-etched / frosted – light transmittance 0.72 with full obscuration, adds $14-24/m².
Reeded / fluted – a vertical linear texture, currently the most specified option for sidelights, adds $22-38/m².
Grey or bronze tint – cuts SHGC from 0.72 to 0.45-0.52, adds $8-16/m².
Switchable privacy glass – PDLC film, opaque at 0 V and clear at 65 V, adds $180-320/m² plus a transformer; used on sidelights facing a street.
Leaded or applied-bar Georgian grid – 18-25 mm bars bonded to both faces, adds $38-72/m².
Front Entry Door Certifications by Destination Market
The certification route is set by the destination, not by the factory. Ordering the wrong route is expensive because the test is done on the finished assembly.
European Union: CE Marking Under EN 14351-1
External pedestrian doorsets fall under EN 14351-1 with AVCP system 3. The declared characteristics are: resistance to wind load, resistance to static torsion, operating forces, safe opening and closing, mechanical strength, thermal transmittance (Ud), air permeability, water tightness, radiation properties (g value and light transmittance), and, where relevant, acoustic performance and burglar resistance. The factory issues a Declaration of Performance with the DoP number printed on the frame label and on the leaf hinge-side edge.
United Kingdom: UKCA / CE, PAS 24 and Approved Document Q
Requirement
Document
What is tested
Typical result on the mid build
Security – new dwellings
PAS 24:2022
3 min manual attack + cylinder torque + lever load
Pass
Security – police mark
Secured by Design
PAS 24 plus licensed manufacturer audit
Pass on the specified hardware set
Thermal – Part L 2021
EN ISO 10077-1 / BFRC
Ud calculation
1.6 W/m²K (limit 1.4 for doors)
Safety glass
EN 12600
Pendulum impact
1B1
Fire – flats
EN 16034 / BS 476-22
Integrity and insulation
FD30 with rock wool core and intumescent
The Part L 2021 limiting Ud for a door with more than 60 percent glazing is 1.4 W/m²K. The standard mid build at 1.55-1.70 W/m²K does not meet it. The compliant route is a 30 mm thermal break with triple glazing (1.22-1.34 W/m²K) or a reduced glazed area on a 24 mm break. This single constraint is the reason UK orders skew toward 30 mm and 34 mm breaks.
United States: NAFS, NFRC and the HVHZ Route
AAMA/WDMA/CSA 101/I.S.2/A440 (NAFS) – the product standard. Performance class R, LC, CW or AW; performance grade PG followed by the design pressure in psf; tested to ASTM E330 (structural), E331 or AAMA 501.1 (water) and E283 (air).
NFRC 100 / 200 – U-factor and SHGC simulation and the label. A door without an NFRC label cannot be used for ENERGY STAR or for most utility rebate programmes.
ANSI/BHMA A156 series – hardware grades, covered in the hardware section above.
Miami-Dade NOA / Florida Product Approval – required in the High Velocity Hurricane Zone. Testing runs TAS 201 (large missile impact, 9 lb 2×4 timber at 34 ft/s), TAS 202 (uniform static air pressure) and TAS 203 (9,000 cyclic pressure cycles). ASTM E1886 / E1996 is the equivalent for areas outside the HVHZ.
ADA threshold rule – 2010 ADA Standards 404.2.5 sets a maximum 13 mm (0.5 in) rise at the threshold, with any rise between 6 mm and 13 mm bevelled at no steeper than 1:2. This is a hard constraint on accessible routes and it eliminates most exposed thresholds.
Australia, Middle East and Other Destinations
AS 2047 – windows and external glazed doors in buildings. Wind classification N1-N6, water penetration and air infiltration. AS 1288 sets glass selection.
AS 1428.1 – accessible threshold, maximum 5 mm lip with a bevelled edge or 35 mm with a ramp.
SASO / Gulf – Saudi Arabia requires a SABER certificate of conformity; a product conformity certificate plus a shipment certificate, 7-12 working days.
ISO 9001 – factory quality management, audited annually.
ISO 14001 – environmental management, requested by EU public procurement and by several developer groups.
For projects that need a fire rating on an apartment entry door, the standard is EN 16034 with EN 14351-2, giving EI30 or EI60. The build differs substantially: rock wool core, intumescent strips in the rebate, a fire-rated glazing unit and a tested closer. Fire-rated leaves run $310-540 per set and require the certificate to list the exact hardware. Reference the steel versus aluminum exterior door comparison for the cost and performance trade-off on fire-rated entrance doors.
Production Process: Extrusion to Crating in Twelve Operations
A Foshan entry door line runs twelve operations. Nine are mechanised, three are manual assembly and adjustment.
Operations 1-6: Profile and Surface
Extrusion – billet heated to 480-520 degrees Celsius, pressed at 12-18 m/min through a hardened steel die. Die life is 40-60 tonnes of profile.
Ageing – artificial ageing at 195 degrees Celsius for 4 h (6063-T5) or 6 h (6063-T6) to reach the specified temper.
Cutting – double-head saw to length at ±0.2 mm; stiles and rails cut in pairs to keep the leaf square.
Thermal break insertion – roll-in on the polyamide strip at 230-250 degrees Celsius, followed by a mechanical crimp test at 80 N/mm sample pull.
Surface pre-treatment – chrome-free conversion or, for seaside class, anodic pre-treatment to 3-5 μm before powder.
Coating – electrostatic powder at 60-80 kV, film built to 60-120 μm depending on class, cured at 195-205 degrees Celsius for 12-15 min in a gas-fired oven; PVDF at 30-40 μm cured at 230-240 degrees Celsius.
Operations 7-12: Machining and Assembly
CNC machining – 4-axis centre cuts hinge pockets, lock mortices, cylinder holes and drainage slots at ±0.1 mm. Drainage slots are cut on a 5 degree inward slope.
Core bonding – the two skins and the core are laid in a hydraulic press at 0.8-1.2 MPa for 25-40 min with a two-component polyurethane adhesive. Press time is the longest single operation in the leaf build.
Frame assembly – corner keys inserted, corners crimped on a four-head press, then injected with two-component epoxy through the key-way. Shear strength on an epoxied corner reaches 2,400-2,800 N versus 900-1,200 N on a crimped-only corner.
Glazing – setting blocks at quarter points, spacer shims, then structural glazing tape or a wet-sealed wedge gasket depending on the specified water class.
Hardware fitting and adjustment – hinges, lock gearbox, cylinder and handles fitted on a bench jig; the leaf is cycled 20 times and the strike adjusted until latch engagement is clean at 2.5-3.5 mm gasket compression.
Packing – PE foam sleeve, corner protectors, 5-ply carton, then plywood crate for FCL or pallet for LCL.
Where Time Actually Goes
Operation
Elapsed time
Share of 30-day lead time
Can be compressed?
Extrusion + ageing
2 days
7 %
No – batch dependent
Coating
1 day
3 %
No – oven cycle
CNC + assembly
4 days
13 %
Yes, to 2 days at a rush premium
Core bonding press
1 day
3 %
No – cure time
Glazing + hardware
2 days
7 %
Partly
Shop drawing approval (buyer)
5-9 days
17-30 %
Yes – the biggest single saving
Shop drawing approval is typically the longest line item in the schedule and the only one the buyer controls. Returning a marked drawing within 48 hours takes 4-7 days out of a standard 30-day lead time.
Quality Control: Inspection Points and Test Records
The line runs a 100 percent inspection rule on critical characteristics rather than AQL sampling. Each leaf carries a serial number that ties to a digital record.
Inspection Points on Every Door
Check
Tolerance / limit
Method
Record
Frame squareness
≤ 1.5 mm over 2 m diagonal
Digital square gauge
Serial record
Leaf gap to frame
3.0 ± 0.5 mm
Feeler gauge at 8 points
Serial record
Gasket continuity
No visible break, corners mitred and bonded
Visual + 8-bar probe
Serial record
Lock engagement
Full throw on all points, handle torque ≤ 3 N·m
20-cycle bench test
Serial record
Glass mark
Tempered logo + standard + plant code present
Visual
Serial record
Coating thickness
Within class (e.g. 60-120 μm)
Eddy-current gauge, 5 points
Batch record
Coating adhesion
Class 0 cross-cut (EN ISO 2409)
Cross-cut on a coupon
Batch record
Wall thickness
Nominal -0.05 mm
Ultrasonic, 3 points per length
Batch record
Type Test Records Held by the Factory
Air / water / wind: EN 1026, EN 1027, EN 12211 on a 1,000 x 2,200 mm and a 1,200 x 2,500 mm assembly.
Thermal: EN ISO 10077-1 calculations plus guarded hot box measurement to EN ISO 12567-1 for the premium configuration.
Acoustic: EN ISO 10140-2 laboratory measurement, Rw 30-38 dB depending on build.
Security: EN 1627 RC2N and RC2 on the specified hardware set; PAS 24:2022 for the UK route.
Cycling: EN 1191, 50,000 open-close cycles on a hung leaf with no loss of function.
Corrosion: ASTM B117 neutral salt spray to 1,000 / 2,000 / 3,000 h by coating class; EN ISO 9227 NSS for the EU route.
What a Buyer Should Ask For Before Shipment
A dimensioned shop drawing with the handing plan symbol, threshold section, and the anchor layout.
The Declaration of Performance with the AVCP system and the notified body number, if a CE route applies.
The coating batch record: powder brand, batch number, oven temperature log and film thickness readings.
Photographs of each crate before loading, crate by crate.
A serialised inspection sheet exported to a spreadsheet, keyed to the packing list.
Buyers consolidating entry doors with windows on the same container should also read the door and window accessory and soundproof specification so that hardware and gasket spares are ordered with the first shipment – a 2 percent spare parts allowance on hardware costs about $1.40 per door and removes most warranty call-outs.
Front Entry Door Price Tables: FOB Foshan in USD
Prices below are FOB China per square metre of door opening and per complete set, excluding freight, insurance and customs. They cover a pre-hung assembly: leaf, frame, threshold, multipoint lock, cylinder, three hinges, a lever handle and a pair of gaskets.
Per Square Metre by Configuration
Configuration
Profile wall
Thermal break
Glazing
Core
FOB USD/m²
Standard
1.4 mm
None
5 + 12A + 5 clear
PU 40
$118 – 165
Standard plus
1.6 mm
14.8 mm PA66GF25
5 + 12A + 5 clear
PU 45
$152 – 198
Mid
1.8 mm
24 mm PA66GF25
5 Low-E + 16Ar + 5
PU 45
$185 – 245
Mid wide
1.8 mm
30 mm PA66GF25
5 Low-E + 16Ar + 5
PU 55
$218 – 286
Premium
2.0 mm
34 mm PA66GF25
Triple Low-E, 2 x Ar
PU 55
$285 – 395
Premium passive
2.0 mm
34 mm + foamed cavity
Triple Low-E, 2 x Ar
Rock wool 90
$340 – 452
Impact / HVHZ
2.0 mm
24 mm PA66GF25
6 Low-E lam + 12Ar + 6 lam
PU 55
$420 – 580
Per Complete Set by Size and Tier
Nominal size
Standard
Mid
Premium
Impact
Set weight (kg)
838 x 1,981 mm (UK)
$218 – 302
$344 – 452
$520 – 690
$760 – 1,050
34 – 46
900 x 2,000 mm (EU)
$232 – 320
$362 – 470
$548 – 720
$800 – 1,100
36 – 48
914 x 2,032 mm (US 36×80)
$236 – 328
$368 – 478
$558 – 735
$815 – 1,120
37 – 50
914 x 2,438 mm (US 36×96)
$286 – 396
$442 – 574
$668 – 878
$975 – 1,340
44 – 60
1,000 x 2,100 mm (EU tall)
$268 – 370
$414 – 540
$626 – 824
$915 – 1,260
42 – 57
1,200 x 2,400 mm (dual leaf)
$520 – 720
$812 – 1,056
$1,226 – 1,612
$1,790 – 2,460
78 – 106
Budgeting note: per-set pricing is more useful than per-square-metre pricing for entry doors, because hardware dominates. On a 914 x 2,032 mm mid-tier set at $420, the breakdown is roughly: frame and leaf $268, hardware $92, threshold and gaskets $34, crating $16, factory margin and overhead $10. A per-square-metre quote alone hides a $40 hardware downgrade that is invisible until the container arrives.
Option Adders
Option
Adder
Unit
Lead time impact
Multipoint lock upgrade, 3 to 5 point
$18 – 42
per set
0 days
3-star cylinder (EN 1303)
$12 – 28
per set
0 days
Concealed hinge set
$15 – 35
per set
2 days
Automatic drop-down bottom seal
$9 – 18
per set
0 days
Thermally broken threshold
$26 – 48
per set
2 days
Flush / low threshold (ADA / AS 1428.1)
$34 – 62
per set
3 days
Warm-edge spacer
$4 – 7
per set
0 days
PVDF coating (AAMA 2605)
$11 – 18
per m²
2 days
Wood grain sublimation
$12 – 20
per m²
5 days
Anodising AA20
$9 – 15
per m²
5 days
Sidelight panel
$85 – 160
per panel
3 days
Transom panel
$70 – 130
per panel
3 days
Smart lock with fingerprint
$95 – 180
per set
6 days
Motorised multipoint
$180 – 260
per set
8 days
Fire rating to EI30
$310 – 540
per set
12 days
Volume Breaks
Order quantity
Discount on the per-m² rate
Typical project
20 – 49 sets
0 % (list)
Single house or small developer batch
50 – 149 sets
4 – 7 %
Townhouse phase, small apartment block
150 – 399 sets
8 – 11 %
Multi-phase residential development
400 – 999 sets
12 – 15 %
Large development, repeat programme
1,000+ sets
16 – 20 % + shared tooling
National builder programme
Volume discounts apply per model, not per order. A 300-set order spread over six models does not reach the 150-set break. Consolidating finishes and sizes to reach a break is usually worth more than the aesthetic loss: moving from four colours to one on a 200-set order saves 8 percent, about $6,700 on a mid-tier specification.
Landed Cost Model: Freight, Duty and Installed Cost per Set
FOB is not the decision number. The table below builds the landed cost for 200 mid-tier sets, 914 x 2,032 mm, shipped to Houston, Texas.
Worked Example: 200 Sets to the US Gulf Coast
Cost line
Basis
Amount (USD)
Per set
FOB Foshan
200 sets at $420
$84,000
$420.00
Inland haulage to port
Nansha to Yantian, containerised
$420
$2.10
Documentation and handling
Export clearance, B/L, certificate
$580
$2.90
Ocean freight
3 x 40HQ, Foshan to Houston
$8,100
$40.50
Marine insurance
0.18 % of CIF x 110 %
$186
$0.93
US customs duty
HTSUS 7610.10.00, verify the current rate
$3,318
$16.59
Trade remedies
Verify current Section 301 / 232 lists
verify
verify
Port, ISF and brokerage
Entry, ISF, THC, delivery order
$1,640
$8.20
Drayage to site
Houston port to Katy, 60 km
$1,200
$6.00
Landed subtotal
Excluding trade remedies
$99,444
$497.22
Installation labour
2 fitters, 1.2 h per set at $68/h
$32,640
$163.20
Sealants, shims, anchors
Consumables per set
$2,200
$11.00
Installed cost
Delivered and fitted
$134,284
$671.42
Trade remedy warning: aluminium products entering the United States have been subject to Section 232 derivative duties, Section 301 tariff lists and several anti-dumping and countervailing duty investigations covering aluminium extrusions. The applicable rate changes by administrative action and depends on the classification of the finished door. Before quoting, confirm the HTSUS subheading with a broker and check the current Federal Register notices. In the European Union, definitive anti-dumping duties on aluminium extrusions from China apply under the TARIC database with exporter-specific rates; classification of a finished doorset under an extrusion code must be checked case by case. Treat any figure quoted without this check as incomplete.
Container Loading Arithmetic
A pre-hung 914 x 2,032 mm set packs at 2,140 x 1,050 x 190 mm, which is 0.427 m³ and about 47 kg with the crate share. A 40HQ gives 68 m³ of usable volume and 26,500 kg of payload.
Volume limit: 68 / 0.427 = 159 sets per 40HQ.
Weight limit: 26,500 / 47 = 563 sets per 40HQ.
Binding constraint is volume, at about 155-160 sets per container.
Three 40HQ containers carry 465-480 sets. A 200-set order fills 1.3 containers, so consolidating with windows or a second door model is the difference between $40 and $62 of freight per set.
LCL is viable below about 40 sets but adds $28-46 per set in handling and raises damage risk by a factor of 3-4 on glazed leaves.
Procurement Data: MOQ, Lead Time, Payment and Packaging
Commercial Terms
Term
Standard position
Negotiable to
MOQ
20 sets per model and colour
10 sets at a 6 % surcharge
Minimum order value
$8,000
$5,000 for a first sample order
Lead time
25 – 35 days after deposit and drawing approval
18 days at a 9 % rush premium
Sample
1 set in 12 – 18 days at list plus air freight
Credit against the first production order
Payment
T/T 30 % deposit, 70 % against B/L copy
L/C at sight; D/P at 30 days for repeat buyers
Currency
USD
EUR accepted, settled at the B/L date rate
Price validity
30 days from quotation
60 days with a volume commitment
Warranty
10 years on the frame and coating, 2 years on hardware
15 years on AAMA 2605 coating
Packaging Specification
Leaf and frame wrapped in 8 mm PE foam sleeve, then a 5-ply carton with corner board on all eight corners.
Glazed leaves carry a cardboard face protector and a red “glass – this way up” marker on two faces.
FCL: stacked in a plywood crate rated to 800 kg, ISPM-15 heat-treatment stamp on two faces, steel strapping on all edges, desiccant bags at 2 per crate.
LCL: palletised with a 15 mm plywood top and bottom, stretch-wrapped to 6 layers, edge protectors on all four verticals.
Hardware ships in a separate numbered carton keyed to the door serial, so a site team can match a lock to a leaf without opening crates.
Each crate is photographed before loading; the photograph set is emailed with the shipping documents.
Ordering Sequence
Send the schedule: sizes, quantities, handing per unit, finish, glazing and hardware grade.
Receive a budget quotation within 48 hours, valid 30 days.
Confirm the shop drawing set, usually 5-9 days of iteration.
Pay the deposit; production slots are allocated on deposit date, not on quotation date.
Factory builds and photographs; a mid-production photograph set is sent at about day 18.
Balance payment against the bill of lading copy; container released.
Documents couriered: commercial invoice, packing list, certificate of origin, DoP where applicable, test certificates, ISPM-15 statement.
Installation Method: Nine Steps, Waterproofing and Commissioning
Most warranty claims on entry doors are installation failures, not product failures. The sequence below is the factory method and is printed on the crate label.
Nine-Step Installation Sequence
Check the structural opening against the shop drawing. Shim gap should be 10-12 mm per side; reject any opening more than 25 mm out of square over 2 m.
Fit a sill pan or a flexible flashing membrane across the base of the opening, turned up 100 mm at each jamb. This is the single step most often skipped and the cause of most sill leaks.
Apply butyl tape to the outer face of the frame flange before the frame enters the opening.
Set the frame on packers, plumb in both planes, and fix through the jamb at 600 mm centres with stainless anchors. Do not fix through the thermal break strip.
Fit the leaf and adjust the hinges so the gap is even at 3.0 mm top and sides, and the leaf does not drop under its own weight when released at 45 degrees.
Fit the strike and adjust until the latch engages at 2.5-3.5 mm of gasket compression; the handle should return without binding.
Seal the exterior perimeter with neutral-cure silicone over a closed-cell backing rod. Acetic-cure silicone attacks the coating and voids the coating warranty.
Fit the threshold end caps and check that the drainage slots are clear of mortar and of the sill pan membrane.
Commission: cycle the leaf 20 times, verify all multipoint bolts throw fully, and run a hose test.
Hose Test Procedure
Run to AAMA 501.2 or EN 1027 practice: a 20 mm nozzle at 100 L/h per square metre of opening, held 300 mm from the face and swept at 0.5 m per 5 seconds for 5 minutes per face. Acceptance is no water penetration on the interior face beyond 50 mm from the frame. Test after the silicone has cured for 24 hours, not before, and re-test one elevation in every twenty.
Three Failure Points That Cause Most Call-Backs
Failure
Symptom
Root cause
Prevention
Sill leak at the corner
Water on the interior floor after wind-driven rain
Sill pan membrane not turned up at the jamb, or cut by an anchor
Pre-formed corner pans; anchor through the jamb, never the sill
Threshold condensation
Water pooling on the inner threshold face in winter
Non-broken threshold on a broken frame, or a foil-insulated trickle vent blocked
Thermally broken threshold; keep weep holes clear
Leaf drop
Leaf binds on the strike after 6-12 months
Two hinges on a leaf above 2,100 mm, or fixing through the polyamide strip
Three hinges above 2,100 mm; fix through the outer chamber only
Commissioning Checklist
Gasket compression even at 2.5-3.5 mm around the full perimeter – checked with a 3 mm feeler.
All multipoint bolts throw fully, verified by listening for the bolt seating rather than by counting handle turns.
Handle returns to horizontal without spring-back.
Cylinder turns with a key from both sides with the door open and closed.
Threshold drain slots clear, verified by pouring 500 ml of water into the track and watching it exit at the weep holes within 10 seconds.
Coating undamaged; any site damage over 5 mm touched up with the supplied repair pen within 24 hours.
Case Study: 72 Townhouse Units, Katy, Texas
A developer building 72 townhouse units in the Houston metropolitan area needed a single entry door specification covering two handing variants and three facade colours.
Specification and Constraints
Parameter
Requirement
Specified build
Tested result
Size
36 x 80 in, two handing variants
914 x 2,032 mm, 41 left / 31 right
As drawn
Wind
ASCE 7-16, Vult 130 mph, Exposure B
NAFS LC-PG40, ±1,900 Pa
Passed at ±1,950 Pa
Water
No penetration under ASTM E331
EN 12208 Class 7A equivalent, 300 Pa
300 Pa, no leak
Thermal
IECC 2021 zone 2, U-factor ≤ 0.40
24 mm break, Low-E DG, warm edge
NFRC U-factor 0.29
Security
Builder standard, no PAS 24
5-point multipoint, Grade 1 cylinder
Passed
Accessibility
ADA 404.2.5 on 12 accessible units
Bevelled threshold, 11 mm rise at 1:2
Passed
Finish
3 facade colours
AAMA 2604, 7016 / 9016 / 8017
Film 92 – 106 μm
Programme
Delivery over 3 phases
25 sets, 22 sets, 25 sets
Delivered on phase dates
Cost Comparison
Cost line
Local US supplier quote
China factory, landed
Difference
Door set, delivered to site
$1,850
$497
– $1,353
Installation labour
$163
$163
$0
Sealants and consumables
$11
$11
$0
Spares at 2 %
included
$9
+ $9
Warranty call-out provision
$45
$38
– $7
Total per set
$2,069
$718
– $1,351
Project total, 72 sets
$148,968
$51,696
– $97,272
The saving is 65.3 percent on the delivered set and 65.3 percent on the installed total. The developer retained the local installer for fitting, which kept the labour line identical between the two options, and applied the saving to upgrading the window package on the same development.
Measured Outcome After 18 Months
Zero structural or water failures reported across all 72 units through two hurricane seasons.
Four warranty calls: two cylinder replacements under a key-wear issue and two threshold seal adjustments, all resolved with the 2 percent spares allowance.
Blower-door test results on the 12 accessible units averaged 2.9 ACH50, inside the 3.0 ACH50 target, with the entry doors contributing an estimated 0.4 ACH50 of leakage.
The developer has since placed two further orders of 84 and 96 sets on the same specification, reaching the 150-set volume break on the third order.
Projects that need a wider opening or a paired configuration should review the aluminum sliding glass door configurations and U-values alongside this specification, because the entry door and the patio door on the same facade are usually finished in the same coating batch to avoid a colour mismatch.
Entry Door Material Comparison: Aluminum, Steel, Fiberglass, Timber, uPVC
Five materials compete for the residential entry door. The table below is measured on a 914 x 2,032 mm single leaf with a mid-tier glazing specification.
Ten-Parameter Comparison
Parameter
Aluminum thermal break
Insulated steel
Fiberglass (GRP)
Engineered timber
uPVC
Ud (W/m²K)
1.55 – 1.70
1.10 – 1.35
1.00 – 1.25
1.20 – 1.50
1.30 – 1.60
Leaf weight (kg)
36 – 48
45 – 62
32 – 44
52 – 70
30 – 42
Dent resistance
Moderate, skin thickness dependent
High on 20-gauge and above
High, can crack on impact
Moderate, dents and recovers slowly
Low, scratches show
Corrosion / rot
Class 4-5 with the right coating
Rusts if the skin is breached
No corrosion
Rot risk at the sill and bottom rail
No corrosion, UV chalks
Thermal movement (mm over 2 m, 40 K swing)
4.6
2.7
2.2
1.4
7.2
Max leaf height without reinforcement
2,700 mm
2,400 mm
2,100 mm
2,400 mm
2,100 mm
Finish range
Any RAL, PVDF, anodised, wood grain
Factory paint, limited range
Gel coat, stainable
Stain or paint
White, foiled, limited dark options
Recoat interval
15 – 25 years
8 – 12 years
10 – 15 years
3 – 5 years
Not normally
FOB China price (USD/set)
$344 – 452
$280 – 380
$410 – 560
$520 – 780
$190 – 280
Best application
Modern facades, tall openings, coastal with 2605
Budget security doors, apartments
Cold climates, timber look without maintenance
Heritage and conservation areas
Lowest budget, mild climates
Thermal Movement Is the Deciding Number
The coefficient of linear expansion for aluminum is 23 x 10⁻⁶ per Kelvin, for steel 12 x 10⁻⁶, for GRP 11-13 x 10⁻⁶, for timber 4-6 x 10⁻⁶ along the grain and for uPVC 70-80 x 10⁻⁶. On a 2,032 mm leaf with a 40 Kelvin seasonal swing, uPVC moves 5.7-6.5 mm and aluminum moves 1.9 mm. This is why uPVC doors bind in summer and rattle in winter, and why the aluminum door hinge and strike tolerances in this article (3.0 mm gap, 2.5-3.5 mm gasket compression) are much tighter than the equivalent uPVC figures.
Whole-Life Cost Over 25 Years
Material
Initial (USD/set)
Maintenance over 25 y
Replacement in period
25-year cost
Aluminum, AAMA 2604
$420
$180 (2 recoats of touch-up, hardware service)
0
$600
Aluminum, AAMA 2605
$436
$90 (hardware service only)
0
$526
Insulated steel
$330
$420 (repainting at 10 y and 20 y, rust repair)
0
$750
Fiberglass
$480
$140 (gel-coat refresh, hardware)
0
$620
Engineered timber
$650
$1,100 (restaining every 4 y, sill repair at 15 y)
0
$1,750
uPVC
$235
$260 (hardware, seal replacement at 12 y)
1 at year 18 ($290)
$785
The numbers assume a temperate climate without a coastal salt load. Within 5 km of a coastline, add $120-260 to the steel and uPVC maintenance lines and $0 to a correctly specified AAMA 2605 aluminum build.
Selection by Project Type and Climate
Six Project Profiles
Project type
Recommended tier
Break width
Glazing
Threshold
Budget (USD/set)
Single dwelling, mild climate
Standard plus
14.8 mm
5 + 12A + 5 clear
Exposed 19 mm
$152 – 198
Single dwelling, cold climate
Mid wide
30 mm
5 Low-E + 16Ar + 5
Broken, 14 mm
$252 – 334
Townhouse development
Mid
24 mm
5 Low-E + 16Ar + 5
Broken, bevelled 11 mm
$368 – 478
Apartment entry, fire rated
Premium, EI30
24 mm
EI30 fire glass
Broken, flush 5 mm
$870 – 1,260
Coastal / HVHZ
Impact
24 mm
Laminated, TAS 201
Rebated 15 mm
$815 – 1,340
Passive house / EU new build
Premium passive
34 mm, foamed
Triple Low-E, 2 x Ar
Broken, flush 0 mm
$626 – 824 + threshold
Climate Rules of Thumb
Below 2,500 heating degree days: a 14.8 mm break with clear double glazing is sufficient; the money is better spent on the coating class.
2,500 – 4,500 heating degree days: 24 mm break, Low-E with argon, warm-edge spacer, thermally broken threshold.
Above 4,500 heating degree days: 30 mm or 34 mm break, triple glazing, broken threshold, and a condensation resistance check to EN ISO 13788.
Cooling-dominated with high solar gain: Low-E with a SHGC under 0.30 and a light exterior colour. A dark exterior face at 0.72 SHGC adds 180-320 kWh per year of cooling load on a west-facing entry.
Coastal within 5 km: AAMA 2605 or Qualicoat Class 2, 316 stainless hardware, EN 1670 grade 5, and weep holes cleaned annually.
When Not to Use Aluminum
Aluminum is the wrong choice in three situations. First, where a conservation authority requires a solid timber section and a painted finish – the anodised or powder look reads as metal at close range. Second, where the budget is under $200 per set and the climate is mild, in which case uPVC is cheaper and adequate. Third, where the door must be cut or trimmed on site to fit an irregular opening – aluminum cannot be planed or sawn in place, and the door must be made to the measured size. In all three cases one of the other four materials in the comparison table is the correct answer, and a buyer should say so rather than force the specification.
RFQ Checklist: What to Send for an Accurate Quotation
Eight Technical Items
Schedule of sizes with quantities, and the handing of each unit shown on a plan symbol.
Facade condition: masonry, blockwork, timber stud or steel stud, with the reveal depth.
Wind and water requirement: design pressure in Pa or psf, and the standard (EN 12210, NAFS class and PG, AS 2047 N rating).
Thermal requirement: target Ud or U-factor, and the calculation standard (EN ISO 10077-1 or NFRC 100).
Glazing specification: build-up, Low-E type, spacer, tint, obscuration and any safety class.
Hardware grade: ANSI/BHMA grade or EN grade for lock, cylinder, hinge and closer; plus whether PAS 24 or RC2 certification is required.
Finish: AAMA class or Qualicoat class, RAL or anodised reference, and whether internal and external differ.
Threshold type and any accessibility requirement: ADA 404.2.5, AS 1428.1, or Part M.
Eight Commercial Items
Incoterm: FOB, CIF or DDP, and the named port.
Destination country and, for the United States, the state – because the HVHZ counties in Florida carry a different requirement.
Quantity per model, per colour and per finish, since volume breaks apply per model.
Required delivery date and whether phased deliveries are needed.
Payment preference: T/T, L/C at sight, or an open account arrangement for repeat buyers.
Whether a sample set is required before production, and whether the sample cost is to be credited.
Whether third-party inspection is required, and by whom.
Spare parts allowance: the standard recommendation is 2 percent of hardware and 1 percent of gasket length.
A quotation request that omits the handing plan symbol and the design pressure will come back as a budget estimate with a ± 18 percent band. A complete request returns a firm price within 48 hours with a ± 4 percent band, and the shop drawing can start immediately.
Glossary of Front Entry Door Terms
Product and Component Terms
Term
Definition
Leaf
The moving panel of a door, hung on hinges within a frame.
Pre-hung
A door supplied as a leaf already hung in its frame with hardware fitted.
Stile
The vertical edge member of a leaf; the lock stile carries the lock, the hinge stile the hinges.
Rail
The horizontal member of a leaf, at the top, bottom or mid-height.
Sidelight
A fixed glazed panel installed beside a door leaf.
Transom
A fixed glazed panel installed above a door leaf.
Threshold
The bottom member of the frame that closes the floor junction.
Multipoint lock
A lock engaging the frame at three or more points from one handle throw.
Shootbolt
A bolt that extends vertically into the head or sill.
Mushroom cam
A mushroom-shaped locking cam that resists the leaf being spread from the frame.
Thermal break
The polyamide strip separating inner and outer aluminium halves of a profile.
Warm-edge spacer
A low-conductivity spacer in an insulating glass unit that cuts edge heat loss.
Standard and Compliance Terms
Term
Definition
Ud
Whole-door thermal transmittance, W/m²K, to EN ISO 10077-1.
U-factor
North American equivalent of Ud, Btu/h·ft²·°F, to NFRC 100.
fRsi
Temperature factor, used to assess condensation risk; higher is better.
DP (design pressure)
The pressure a door is rated to resist, in psf (NAFS) or Pa (EN).
RC class
Burglar resistance class to EN 1627, RC1N to RC6.
PAS 24
UK enhanced security test specification for doorsets, referenced by Approved Document Q.
HVHZ
High Velocity Hurricane Zone, the Florida counties requiring Miami-Dade NOA or Florida Product Approval.
NAFS
North American Fenestration Standard, AAMA/WDMA/CSA 101/I.S.2/A440.
DoP
Declaration of Performance, the CE document listing declared characteristics.
AVCP
Assessment and Verification of Constancy of Performance, the CE conformity route (system 1-4).
EI30 / EI60
Fire resistance classification: integrity and insulation for 30 or 60 minutes.
IPSM-15
The phytosanitary standard requiring heat treatment or fumigation of wood packaging.
Related Aluminum Door and Window Products
Entry doors are normally ordered together with the rest of the exterior package. The links below carry the same coating batch and the same hardware platform, which avoids a colour or finish mismatch across a facade.