Custom Style Modules for Modern Casement Windows
Supports 10 configurable layouts, including single and dual swing casement windows, fixed-glass combinations, split panels, angled tops, stepped shapes, and polygon designs, within defined operable and fixed panel size limits.
Custom Style Options
Single Swing Casement Window
One opening panel with hinges on one side. Opens left-hand or right-hand. Use when you need simple ventilation and easy cleaning access.
Three-Panel: Opening + Fixed + Opening
Two opening panels on both sides, fixed glass in the center. Keeps airflow on two sides while the center stays sealed and stable.
Upper Opening + Lower Fixed (Split Height)
Top section uses one or two opening panels. Bottom section uses fixed glass. Helps keep the lower area closed for safety, furniture, or railing zones.
Wide Layout: Side Opening + Large Center Fixed
Opening panels on both sides with a wider fixed center panel. Suits large wall openings where you want a main view area and side ventilation.
Large Opening with Top Fixed Band
Main opening uses multiple panels across the width. A fixed glass band sits above as a transom. Adds extra light while keeping the main opening size controlled.
Angled Top: Left Opening + Right Fixed
Left panel swings open. Right panel stays fixed. The top edge is sloped to follow a stair or roof line. Use when the opening shape is not rectangular.
Angled Top: Right Opening + Left Fixed
Right panel swings open. Left panel stays fixed. Sloped top matches the same angled conditions. Choose this when the opening side must swap due to traffic or furniture.
Stepped Fixed Glass: Left Opening + Step Shape
Left panel swings open. Fixed glass steps up beside or above it. Helps avoid beams or corner limits while keeping an opening panel where you need it.
Stepped Fixed Glass: Right Opening + Step Shape
Right panel swings open. Fixed glass steps up beside or above it. Same purpose as the left version, but fits a reversed room layout.
Polygon Shape with Double Swing Panels (French Casement)
Two opening panels meet at the center and swing open from the sides. Outer frame is polygon-shaped. Use for feature openings where the wall shape is angled.
Size Limits (Production Rules)
Opening panel (operable) size range
Width: 400–700 mm
Height: 450–1500 mm
Each fixed panel area: ≤ 8 m²
Why Choose DERCHI for S8 Slim Frame Series Casement Windows (modern casement windows)
DERCHI supports modern casement windows with proven experience, large manufacturing capacity, strong output history, recognized certifications, patents and awards, an engineer research team, global distribution, reliable suppliers, 100% inspection, and one-stop service.
· 15+ years in aluminum windows and doors for modern casement windows, including swing casement windows and horizontal casement windows
· 70,000+ ㎡ factory and 4,000 ㎡ showroom with 600+ employees for production, testing, and customer visits
· 600,000+ ㎡ annual output and 200,000+ completed cases to support stable lead times and repeatable delivery
· Certified by NFRC, CE, AS2047, CSA, and ISO9001 to support code needs and project documentation
· 100+ patents (invention, appearance, design) that support structure, sealing, and casement window insulation details
· 50+ industry honors that reflect performance results, delivery record, and service feedback
· 20+ engineer research team improving frames, water paths, and hinge strength for the S8 Slim Frame Series
· 700+ distributors and customers in 100+ countries for quoting support, samples, and after-sales follow-up
· Work with global raw material and hardware brands to keep parts consistent and supply stable
· 100% full inspection before shipment: size, surface, glass fit, operation, and packaging records
· One-stop customer service from ordering to shipment, including drawings, updates, packing lists, and export documents