Exceptional performance meets clean design and durability.
The ability of a Western Window Systems’ Series 9500 Bi-Fold Door to completely open up to the outdoors is what makes it so unique. Designed to smoothly stack and fold against side walls, it creates a huge opening from corner to corner, connecting the indoors with the outside and expanding living space. Need everyday access? Opt for convenient single or double swing doors.
Thermally broken aluminum and dual-paned low-E glass make the Series 9500 energy efficient. And because it’s aluminum, it’s low maintenance, too. Sealed stainless steel ball bearing rollers allow for easy operation, even with extreme panel weights. Options such as flush and water barrier sills, inswing and outswing capabilities, and countless sizes, configurations, and finishes let you customize the Series 9500 Bi-Fold Door to your individual style.

"I get all the light I want and can enlarge the footprint of the house."Howard Giller, homeowner
Clean Design
Designed for strength as well as the ability to blend into nearly any space, the Series 9500’s contemporary look includes a 2.25” x 3.5” stile for additional glass and light, a concealed locking system, and a frame and sill depth of 4.50”, allowing it to integrate into nearly any wall condition.
Smooth Operation
Sealed stainless steel ball bearing rollers make our bi-fold door easy to operate.
Designed and Tested for Durability
Because we build and test our windows to last, you can enjoy your Western Window Systems product for years to come. Manufactured in the U.S., each of our product families is tested for air, water, and structural performance and certified by the NFRC (National Fenestration Rating Council) and AAMA (American Architectural Manufacturers Association).
Climate Ready Glass
The Series 9500 features dual-paned low-E glass for better energy performance. Glass can be customized in a variety of types, colors, and thicknesses for improved privacy, protection, and thermal efficiency.
Thermally Broken Aluminum
Thermally broken aluminum provides an insulating barrier that increases energy performance.
Concealed Locking System
Our bi-fold door includes a hidden stainless steel multi-point lock to secure its large panels, providing additional strength and protection. A keyed cylinder option is available.
Heavy Duty Hardware
For strength and durability, Western Window Systems uses stainless steel hardware for its door systems. Our 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
The Series 9500 Bi-Fold Door System is available in a multitude of configurations, with panels up to 42' wide and 12' tall (not to exceed 264 pounds per panel). Sixteen-panel maximum, eight in each direction. For additional flexibility, the Series 9500 can be specified to swing inward or outward.
Series 9500 Bi-Fold Window
Panoramic Views Meet Remarkable Performance
Perfect for entertaining places like patios and decks, opening up a kitchen to the outdoors, or creating a relaxing window seat to a spectacular view, the Series 9500 Bi-Fold Window makes any room look and feel more spacious. Designed to smoothly stack and fold against side walls, it creates a huge opening from corner to corner, connecting the indoors with the outside.
Sealed stainless steel ball bearing rollers allow for easy operation. And because it’s aluminum, it’s low maintenance, too.


Water Barrier Sill
Designed for effectiveness in all climates, the water barrier sill safeguards against water intrusion while providing a tight seal. For bottom loading bi-fold doors, where the bottom of the door carries the majority of the weight, the interior leg is 2.51”. Thresholds are finished to match the frame color.

Flush Sill
When ease of entry is more important than climate performance, the flush sill can line up with most interior flooring for a smooth transition to the outdoors. On bottom loading bi-folds, the interior threshold height is 1.76”. Thresholds are finished to match the color of the frame.
Note: The flush sill is not warrantied against water penetration.

Water Barrier Sill
Designed for effectiveness in all climates, the water barrier sill safeguards against water intrusion while providing a tight seal. In top hung bi-fold doors, where the weight is concentrated in the heads, the interior leg is 1.82”. Thresholds are finished to match the frame color.

Flush Sill
When ease of entry is more important than climate performance, the flush sill can line up with most interior flooring for a smooth transition to the outdoors. Top hung bi-fold doors feature an interior threshold height of 1.07”. Thresholds are finished to match the color of the frame.
Note: The flush sill is not warrantied against water penetration.

U Track
For top hung bi-fold doors intended for interior use only, the U track allows for a flush transition from room to room and is offered in a dark bronze finish.
Note: The U-track is not warrantied against water penetration.
Carrier Hinge
Bottom Load Bi-Fold

Heavy Duty Carrier Hinge
Head Load Bi-Fold

Carrier Hinge
Head Load Bi-Fold


High-Quality Handles
Designed for durability and comfort, each of our bi-fold doors features three high-quality, contemporary-style handles. The premium handle, located on all active panels, includes an optional key lock. A D-shaped pull handle, at the bi-fold’s pivot points, further aids in opening and closing the door. And an inactive lock handle, at the door’s pivot points, secures the door panels with steel pins at the head and sill.
Premium and inactive lock handles are available in brushed nickel or black. The D-shaped pull handle is available in stainless steel or black.

Aluminum Finishes
Aluminum finishes for the Series 9500 Bi-Fold Door are available in-stock, as designer selections, and can be customized to match nearly any color. Samples shown are representative only. For exact paint swatch samples, contact us.
In-Stock Finishes
Dark bronze and satin anodized aluminum come standard with a Class 1 coating thickness for increased smoothness and durability.
Designer Finishes
Our designer colors are based upon popular paint choices in the homebuilding industry and include a high-quality paint finish that conforms to a minimum rating of AAMA-2605, currently the highest rating for organic finishes.
Custom Finishes
Have a specific color in mind? We can customize the color of your Series 9500 Bi-Fold Door to match virtually any finish.