Thermally broken aluminum
The system is designed to reduce direct heat transfer through the aluminum frame.
Win-Dor · Door
Win-Dor 4750 Aluminum Multi-Slide Door
The WinDor 4750 is the manufacturer’s thermally broken aluminum multi-slide system. It trades the vinyl surface of the 3750 family for slimmer aluminum lines, larger published assemblies, and a distinctly modern appearance.
- Category
- Door
- Material
- aluminum
- Brand
- Win-Dor
- Product type
- Collection comparison
Product overview
Enough detail to make a useful shortlist.
The current technical page lists configurations from three-panel doors through very wide fixed-end systems, with standard and flush sills across multiple track and frame details. This is an engineered opening, not a catalog card that can be sized casually.
This page summarizes the documented product. Your final proposal should still name the exact size, configuration, glass, finish, hardware, and installation frame.
Large configurations
The current page publishes selected layouts as wide as 50 feet and as high as 10 feet.
Modern finish palette
Black Anodized, Satin Anodized, White Painted, and Fossil Painted finishes are documented.
Standard or flush sill
Published details cover both sill directions across multiple track and frame families.
Photos + details
See the product, not a brochure thumbnail.
Open each view to inspect installation photography, product renderings, and construction details from current manufacturer materials.
Specifications
The facts that should appear on the quote.
Manufacturer-published dimensions and capabilities are maximums or examples unless stated otherwise. The ordered configuration controls.
Door system
- Material
- Thermally broken aluminum
- Operation
- Multi-slide with unidirectional and bi-parting layouts
- Published size range
- Selected standard details from 9 by 8 ft through 50 by 10 ft
- Finishes
- Black Anodized, Satin Anodized, White Painted, and Fossil Painted
Technical detailing
- Tracks
- Three-track and four-track families are published
- Frames
- Applied one-inch nail fin, 1.375-inch nail fin, and block frame details
- Sills
- Standard and flush sill details
- Configuration notation
- Three-panel through wide fixed-end multi-panel layouts
Technical resources
Source documents, when you want the fine print.
Material, finish, configuration, and technical-detail information comes from WinDor’s current 4750 page. Final elevations, shop drawings, glass engineering, and performance data control.
Common questions
What usually needs clarification.
Why choose 4750 instead of 3750?
Choose 4750 for a slimmer, fully aluminum aesthetic and its larger published configuration range. Choose 3750 when a vinyl surface and hybrid reinforced construction are the better fit.
Does every 4750 door reach 50 feet?
No. Fifty feet is shown on selected multi-panel fixed-end layouts. Maximums depend on panel count, height, glass, exposure, performance, and engineering.
What is the difference between standard and flush sills?
A flush sill lowers the visual and physical transition, while a standard sill generally supports stronger weather management. The correct detail depends on exposure, drainage, and accessibility.
Related products
Keep comparing without losing your place.
Anlin Malibu Sliding Patio DoorA vinyl sliding patio door designed to coordinate with Anlin replacement window collections.View product 
Anlin Malibu Swinging French DoorA hinged French-door option designed as a companion to Anlin window systems.View product 
Anlin In-Glass Pet DoorA pet door built into the insulated glass of eligible Malibu sliding and swinging patio doors.View product Product imagery is shown for comparison. Final colors, glass, hardware, dimensions, ratings, warranty terms, and Arizona availability are confirmed from current samples and the written proposal.
Start with a clearer plan
See whether Win-Dor 4750 Aluminum Multi-Slide Door fits your opening.
Send the opening, project stage, and what matters most. We’ll narrow the configuration before asking you to choose finishes.