Western Window Systems Doors
Series 9550 Bi-Fold Door
The incredible design of the Series 9550 Bi-Fold Door makes any project stunning. A 2.25″ x 3.5″ stile provides more glass and natural light. A concealed stainless-steel, multi-point lock secures panels while staying out of sight. And a frame and sill depth of 4.50″ allows for a clean mull into nearly any wall condition.
Powerful. Easy to operate. Versatile. The Series 9550 Bi-Fold door from Western Window Systems is designed to smoothly stack and fold against side walls, creating a huge opening from corner to corner, connecting the inside with the outside. And with multiple sill options, both inswing and outswing capabilities, and countless sizes, configurations, and finishes, you can unlock several creative possibilities.
- Large panel sizes
- Single track operation
- Multiple sill height options
- Panels up to 42″ wide or 144″ tall
- Premium hardware and roller options
- Low-E glass, dual-paned
- Thermally broken aluminum
- Single or double swing door options
Operation
Sealed, stainless-steel ball bearing rollers make the Series 9550 Bi-Fold Door easy to operate. Stainless-steel, head-load carriers and hinges are capable of handling panels weighing up to 264 pounds. Bottom-load carriers and hinges can accommodate door panels weighing up to 176 pounds.
Configurations and Sizes
Western Window Systems’ Series 9550 Bi-Fold Door is available in a multitude of configurations with panels up to 42′ wide and 12′ tall (not to exceed 264 pounds per panel). It has a sixteen-panel maximum, eight in each direction, and can be specified to swing inward or outward.
Turn a Bi-Fold Door into a Bi-Fold Window
Perfect for entertaining spaces like patios and decks, opening up a kitchen to the outdoors, or creating a relaxing window seat open to a spectacular view, the Series 9550 Bi-Fold Door is an equally amazing window too.
Carrier Hinges

Carrier Hinge
Bottom load bi-fold

Heavy Duty Carrier Hinge
Head load bi-fold

Carrier Hinge
Bottom load bi-fold
Finishes
In-Stock Finishes
Bronze Anodized and Satin Anodized aluminum feature a Class 1 coating thickness for increased smoothness and durability.
Custom Finishes
Provide a sample of your desired color, and we’ll match it.
Designer Finishes
Include a high-quality paint finish that conforms to a minimum rating of AAMA-2605, currently the highest rating for organic finishes.
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