Unclear system selection
Compare casement, tilt-and-turn, sliding, bifold and entrance systems against the actual opening, climate and use case.
Project-ready aluminum fenestration
DERCHI is a China-based aluminum window and door manufacturer supporting builders, contractors, architects, developers and homeowners with customized systems for U.S. residential and commercial projects.
Built for project decisions
Window and door procurement affects envelope performance, appearance, installation planning and long-term service. DERCHI brings product selection, technical communication and manufacturing coordination into one project path.
Compare casement, tilt-and-turn, sliding, bifold and entrance systems against the actual opening, climate and use case.
Review glazing, frame thickness, thermal break options, air and water performance, hardware and finish before ordering.
Keep drawings, quantities, quality checks, packing and delivery communication connected through a dedicated project process.
Send your drawings, schedule or rough dimensions and receive a project-focused recommendation.
Product range
Choose a product family first, then refine the series, dimensions, glazing, hardware, finish and opening configuration around your project requirements.

Thermal break casement, inward-opening, sliding, fixed, picture, hung and awning window options.
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WT-105B, WT-135D, WT-135, WT-143 and WT-150 sliding door series for villas and commercial spaces.
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WZ-78 and WZ-80 thermal break folding door options for wider openings and indoor-outdoor connection.
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Entrance doors, W-150 curtain wall systems, sunrooms, skylights and related aluminum solutions.
View door and window systems →Why DERCHI
From initial product selection through shipment, the DERCHI team combines a broad aluminum system range with manufacturing, testing and technical support.
Selected thermal break casement and sliding series use insulated profiles and double glazing configurations to support energy-conscious project specifications.
Catalogued options include U-Factor, SHGC, air tightness, water tightness, wind pressure resistance and sound insulation data for selected series.
Customize dimensions, opening methods, glass, frame and sash details, hardware, finishes, drainage, screens and accessories around your design.
The catalog presents a 75K sq.ft production base, 4.0 intelligent automatic production lines and annual output of 5.3 million sq.ft.
DERCHI presents a national standard testing centre, product test reports, ISO9001 quality management documentation and 100% full inspection before shipment.
Coordinate product questions, technical communication, quotation, order production, packing, shipping and after-sales support through one supplier team.
Specification decisions
The 2026 catalog covers multiple window and door families. A project quote should be based on the exact series, dimensions, glazing, hardware and finish rather than a generic product name.
Solutions
DERCHI provides project solutions for residential and commercial requirements where performance, daylight, security, aesthetics and installation coordination all matter.
Catalog parameters
The ranges below summarize values shown for selected series in the 2026 DERCHI catalog. Confirm the exact series, size and glazing build-up before final specification.
| Product family | Catalog series | Performance data shown | Construction and configuration data |
|---|---|---|---|
| Thermal break casement windows | WY-63 to WY-127 | Water tightness 650-700 Pa; air tightness 1.2-1.8 m³/(m·h); wind pressure resistance 4.5-5 kPa; sound insulation 30-35 dB; U-Factor 0.23-0.32; SHGC 0.20-0.25 | Double tempered glass options including 5 mm + 20A + 5 mm and 5 mm + 27A + 5 mm; profile thickness 1.5-1.8 mm; frame widths 77-127 mm; outward opening or awning options |
| Inward-opening tilt-and-turn windows | WN-85 to WN-114 | Water tightness 700 Pa; air tightness 1.2 m³/(m·h); wind pressure resistance 5 kPa; sound insulation 35 dB; U-Factor 0.23-0.32; SHGC 0.20-0.25 | Profile thickness 2.0 mm; frame widths 85-114 mm; 5 mm + 27A + 5 mm and 6 mm + 16A + 6 mm double glazing options; inward opening or tilt-and-turn |
| Thermal break sliding windows | WT-94, WT-95, WT-123 | Water tightness 450 Pa; air tightness 4.5 m³/(m·h); wind pressure resistance 5 kPa; sound insulation 30 dB; U-Factor 0.32; SHGC 0.25 | Double tempered glass 5 mm + 12A + 5 mm; profile thickness 1.8 mm; frame widths 94-123 mm; two-track, three-track, four-track or five-track options by series |
| Translated sealed window | W-G41 | Water tightness 700 Pa; air tightness 1.2 m³/(m·h); wind pressure resistance 5 kPa; sound insulation 35 dB; U-Factor 0.27; SHGC 0.22 | 5 mm + 20A + 5 mm double tempered glass; frame 2.0 mm and sash 2.2 mm; frame width 132 mm; fixed and opening combinations |
| Thermal break sliding doors | WT-105B, WT-135D, WT-135, WT-143, WT-150 | Water tightness 300-350 Pa; air tightness 3.0-4.5 m³/(m·h); wind pressure resistance 4.5 kPa; sound insulation 30-32 dB; U-Factor 0.28-0.38; SHGC 0.20-0.22 | 5 mm + 20A + 5 mm or 5 mm + 27A + 5 mm double tempered glass; selected profile thickness 1.8-2.2 mm; frame widths 135-217 mm; two-track or three-track options |
| Double-hung windows | 105 Thermal Break Double Hung Window | Water tightness 350 Pa; air tightness 4.5 m³/(m·h); wind pressure resistance 5 kPa; sound insulation 30 dB; U-Factor 0.39; SHGC 0.25 | 6063-T5 aluminum profile; 5 mm + 9A + 5 mm double tempered glass; profile thickness 1.6 mm; suggested size 300 mm × 600 mm to 1,000 mm × 2,400 mm |
Performance values are series-specific catalog data, not a universal claim for every DERCHI product. For a U.S. project, request the applicable product certificate, test report and glazing configuration with the quotation.
Manufacturer advantages
Use the manufacturer data, certification list and project references to evaluate whether the DERCHI system range fits your U.S. project.
15+ years of experience in aluminum windows and doors, with a 20+ expert R&D team.
75K sq.ft production base, 4.0 intelligent automatic production lines and 5.3 million sq.ft annual output stated in the catalog.
DERCHI states that it completes 100% full inspection before shipment, supported by a national standard testing centre.
200,000+ successful cases, 700+ distributors and customers in more than 100 countries are stated in the 2026 catalog.

Trust and compliance
The 2026 DERCHI catalog presents certificates and reports for selected product families. Ask the project team to match each document to the exact series and glazing configuration in your quotation.
Factory and product video
Watch the official DERCHI Window channel video to see the manufacturer and product range, then send your project requirements for a technical review.
U.S. project references
These project references are published on the DERCHI case page. Open the case library for the full project descriptions, product details and additional images.

Published product mix: aluminum entry doors, aluminum sliding doors and aluminum glass fixed windows.
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A published DERCHI residential project reference in the United States.
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A published commercial project reference for an apartment in New York.
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A published case focused on energy-efficient window and door solutions.
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The published case describes folding doors and casement windows for a California villa.
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A published U.S. residential reference showing a whole-house aluminum window and door customization program.
Browse the complete case library →Project process
A practical workflow helps the product, technical and logistics teams work from the same project information.
Share the project location, building type, opening schedule, drawings, approximate dimensions and quantities.
Review product family, series, glazing, hardware, finish, performance targets, packing and delivery requirements.
Receive a quotation and technical recommendation based on the agreed scope and selected system.
Coordinate approved production, inspection, packing, shipment and installation guidance through the project team.
FAQ
Answers below are based on the 2026 catalog, the DERCHI commercial product information and published project references.