Four opening strategies
Stacking, bi-parting, pocketing, and corner configurations are documented.
Win-Dor · Door
Win-Dor 3750 Multi-Slide Door
The WinDor 3750 multi-slide expands the hybrid aluminum-reinforced vinyl system into large stacking, bi-parting, pocketing, and corner-door openings. The manufacturer publishes heights up to 10 feet and extensive shop-drawing details.
- Category
- Door
- Material
- hybrid, vinyl
- Brand
- Win-Dor
- Product type
- Collection comparison
Product overview
Enough detail to make a useful shortlist.
This is the 3750 direction when the project needs a wide opening but still wants vinyl surfaces, coordinated frame profiles, and lower maintenance than exposed wood. Pocket and corner systems require early structural, waterproofing, and floor coordination.
This page summarizes the documented product. Your final proposal should still name the exact size, configuration, glass, finish, hardware, and installation frame.
Up to 10 feet high
The current page publishes expansive size capability reaching 10-foot heights.
Hybrid frame
Aluminum reinforcement adds structure while vinyl supplies the visible low-maintenance surface.
Extensive drawings
Manufacturer resources cover configurations, elevations, tracks, nail fins, block frames, sleepers, and subfloor cutbacks.
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
- Aluminum-reinforced vinyl
- Published height
- Up to 10 feet on eligible configurations
- Operations
- Stacking, bi-parting, pocketing, and corner
- Handles
- Flush or optional Signature handle directions
Track and wall planning
- Track families
- Three-track and four-track details are published
- Frames
- Applied nail-fin and block-frame details
- Sill conditions
- Sleeper-sill and subfloor-cutback options by detail
- Configuration range
- Additional configurations available beyond published standard details
Technical resources
Source documents, when you want the fine print.
System, height, operation, finish, and technical-resource details come from WinDor’s current 3750 multi-slide page. Final shop drawings and performance sheets control.
Common questions
What usually needs clarification.
Can the panels disappear into the wall?
Yes, in an eligible pocket configuration. The wall must be designed around panel storage, track, drainage, service access, and waterproofing.
Is a corner opening available?
The current manufacturer page lists corner-door configurations. The structural and meeting-corner design must be reviewed for the specific project.
Does every configuration reach 10 feet high?
No. Ten feet is the published upper capability, not a universal size. Panel count, glass, exposure, structural rating, and finish can change the maximum.
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 3750 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.