An entrance door has to do two jobs at once: carry the architectural statement of the building and survive 20 years of weather, wind load and daily use. DERCHI designs, extrudes, finishes and tests each door in-house, so architects, distributors and contractors receive one accountable partner instead of a chain of sub-suppliers.
Since 2000 our engineering team has delivered custom aluminum, cast aluminum, glass and stainless steel entry doors to residential villas, hotel lobbies and commercial entrances in North America, Australia, the United Kingdom, the Philippines and the Middle East.
Every platform shares the same hardware logic, gasket system and factory testing protocol — you only choose the material behaviour that matches the climate, budget and design language of your project.
6063-T5 thermally broken profiles with polyamide strips, ideal for coastal and high-humidity locations where corrosion resistance and slim sightlines both matter.
Sand-cast panels 6–12 mm thick reproduce deep relief patterns that stamped sheets cannot achieve — the classic choice for villa main gates and heritage renovations.
Low-E laminated and tempered insulating glass units up to 42 mm, engineered with structural pivot hardware to keep oversized glazed leaves operating smoothly for years.
SUS304 / SUS316 skins over a reinforced core deliver the highest anti-prying resistance in our range, specified for high-risk entrances and commercial back-of-house openings.
DERCHI (Guangdong Deji Youpin Doors and Windows) is recognised among the top-tier premium door and window brands in China. Aluminum extrusion, CNC machining, surface finishing, glazing and assembly all happen inside our own plant, which is why we can hold tolerance at ±0.5 mm on large leaves and commit to fixed production windows.
Project case studies in the United States, Canada, the Philippines and the Gulf region give our engineers first-hand data on how doors behave under cyclonic wind, desert heat cycling and salt-laden air.
In-house laboratories check air infiltration, water penetration, wind resistance and operating force before a batch is released, so specification sheets reflect measured values — not catalogue estimates.
Every shipment carries an opening-numbered packing list, hardware spare kit and a named engineer contact. Warranty claims are handled directly by the factory, not by an intermediary trader.
Eight international certifications and more than 30 appearance and technology patents back a supply process that was built around the way overseas contractors actually buy.
Entry doors, interior doors, windows and garage systems come from a single accountable factory, cutting consolidation costs and removing the finger-pointing between multiple vendors.
CE, ISO 9001, AS2047 N6 and fire-rated test evidence is supplied with the quotation, so local building inspection and insurance approval do not stall your programme.
Non-standard widths, arched heads, matched sidelights and RAL-specific finishes are routine. Our drafting team returns CAD shop drawings that mirror your door schedule numbering.
English-speaking sales engineers answer within your working hours, from first enquiry to on-site installation guidance. Average first response time is under four hours.
Share drawings, opening sizes and performance targets. We confirm feasibility and material options within 24 hours.
Free CAD sections, hardware schedule and finish samples are issued for your approval and stamping.
Extrusion, CNC cutting, welding, finishing and glazing under one roof, with in-line QC at five checkpoints.
Water, air and operating-force checks, then crated in fumigation-free plywood with opening-numbered labels.
Container loading plan, customs documents, installation manual and video guidance for the first openings.
Use this factory reference to shortlist the right platform before you request drawings. Values are typical measured ranges from DERCHI production batches and will be confirmed per project configuration.
| Door Platform | Core Build-Up | Thermal U-Value | Wind / Water Rating | Best Suited To | Maintenance |
|---|---|---|---|---|---|
| Aluminum Entry Door | 6063-T5 thermal break frame, 80–120 mm depth, PU-filled leaf | 1.8–2.4 W/(m²·K) | Up to AS2047 N6 / 3,000 Pa water test | Coastal villas, modern facades, large pivot openings | Rinse and inspect gaskets annually |
| Cast Aluminum Entry Door | 6–12 mm sand-cast relief panel bonded to aluminum sub-frame | 2.0–2.6 W/(m²·K) | Up to 2,400 Pa wind load | Classical villa gates, gated communities, heritage projects | Wax patina refresh every 2–3 years |
| Glass Entry Door | Structural pivot frame with 24–42 mm laminated / insulating glass | 1.6–2.2 W/(m²·K) | Up to 2,800 Pa wind load, 35 dB+ acoustic | Hotel lobbies, showrooms, daylight-driven residences | Glass cleaning; hinge torque check yearly |
| Stainless Steel Entry Door | SUS304/316 skin 1.2–2.0 mm, honeycomb or rock-wool core | 2.2–2.8 W/(m²·K) | Highest anti-prying class in range | High-security entrances, service and commercial doors | Neutral detergent wipe; no abrasive pads |
Need the full test report package, glazing options or hardware cut sheets for your specification? They are included in our project catalog.
Request a Catalog →Whether you are an architect pushing a design boundary, a homeowner building a long-term sanctuary or a contractor protecting a programme date, you need different information from the same factory.
Claims mean nothing without evidence. Each DERCHI door platform is supported by third-party test reports, traceable material certificates and patent registrations that your consultant or inspector can independently verify.
Cannot fly to Foshan yet? Open the 360° tour and inspect the extrusion lines, powder coating plant, glazing stations and finished-goods warehouse before you commit to a sample order.
Our door systems are produced under an ISO 9001 quality system and have been tested for CE marking, AS2047 N6 (Australian wind, water and air performance) and UL-referenced fire-rated constructions for pivot and commercial lobby doors. Test reports and certificates are released with the quotation package, so your local building inspector can verify compliance before installation begins.
Standard production covers leaves up to 1,600 mm wide and 3,200 mm high. For oversized villa gates and hotel lobby entrances we engineer leaves up to 2,000 × 4,000 mm using reinforced steel-core frames, heavy-duty floor pivots rated to 500 kg and multi-point hardware that controls long-term deflection.
Sampling takes 12–18 days. Bulk production is normally 25–35 days after drawing approval and deposit, depending on the finish selected (powder coating, wood-grain transfer or PVDF). There is no fixed container MOQ for project orders, and single-unit sample doors are accepted for showroom display or local testing.
Each leaf is wrapped in protective film, corner-guarded with EPE foam, sealed in a five-layer carton and fixed inside a fumigation-free plywood crate. Hardware and glazing beads are boxed separately and labelled per opening number, which speeds up site sorting and keeps transit damage claims below 0.3% of shipped units.
Yes. Our engineering team issues free CAD shop drawings, section details and BIM-ready blocks that match your door schedule, followed by installation manuals with torque and anchoring specifications, plus video-call guidance while your crew installs the first openings.
In most cases yes. Send the competitor section drawing, hardware list and performance schedule; our technical team will produce an equivalence table showing where our profile matches, exceeds or differs, so you can present a transparent alternative to the design team rather than an unverified substitution.
Humidity, typhoon wind load and hardware corrosion dominated conversations at our WORLDBEX stand. Here is how we answered and which door build-ups were specified afterwards.
Read Insight →
A UK builder moved a dozen villa projects to DERCHI. We break down the profile depth, gasket layout and hardware choices that made the switch defensible on paper.
Read Insight →
Wind resistance, air and water tightness and durability — what the N6 rating actually measures, and the construction changes we made to reach it in cyclone-prone regions.
Read Insight →Tell us the opening sizes, climate zone and design intent. Our engineers will come back with a shortlist, section drawings and the certification evidence your project needs.
