The unconventional choice for expansive views.

Featuring the same rolling glass panels that stack or slide into pockets as our multi-slide door, the Series 600 Multi-Slide Window is a head-turning alternative to a standard opening. Perfect for large, long areas where people congregate, these moving walls of glass frame beautiful views and let in loads of fresh air and natural light.

Start by choosing your Western Window Systems multi-slide window with the contemporary look of classic aluminum or energy-efficient thermally broken aluminum. From there, a vast range of options lets you customize your functional and aesthetic preferences.

Series 600 multi-slide doors on beach house
"We live on a creek leading to the Chesapeake Bay. The windows provide us with beautiful views of the water."Dean Papadopoulos, homeowner

Product Features

Clean Design

Designed to seamlessly blend into nearly any space, the Series 600 features a 2.55” stile, wide panels, and modern details that allow for more light and glass.

Smooth Operation

Sealed stainless steel ball bearing rollers make our multi-slide window easy to operate. An interlocking track design provides structural integrity and makes it possible to span wide openings with almost any number of panels.

Climate Ready Glass

Our multi-slide windows feature 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.

Classic or Thermally Broken Aluminum

Western Window Systems’ aluminum Series 600 Multi-Slide Window is ideal for residential and commercial projects in moderate climates. Perfect for colder climates, our thermally broken aluminum provides the same effortless operation, versatility, and clean aesthetic of our classic aluminum option, but with an insulating barrier that increases energy performance.

Concealed Locking System

The Series 600 Multi-Slide Window includes a hidden stainless steel multi-point lock to secure its large sliding 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 windows. Rolling hardware is AAMA certified and includes two options: a standard 1.81” size and our 3” Monster Roller, capable of handling more than the weight of the largest panel.

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).

Configurations and Sizes

The Series 600 Multi-Slide Window is available in any configuration, with panels up to 84” wide and 138” tall or 138” wide and 84” tall (maximum 60 sq. ft.). For complete flexibility, our multi-slide windows can be designed to do things like go around curves, bypass obstacles, and bi-part in the center. Nearly any shape is possible, including open corners.


Floor Tracks

Water Barrier Sill

Designed for effectiveness in all climates, the water barrier sill’s 1.5” interior leg and weep-hole system safeguards against water intrusion. For additional protection, the back leg of each sliding panel penetrates the track to help keep out dust and debris.

Flush Sill

The flush sill features an interior and exterior sill height of just .75". Weep holes in the track allow water to drain away from the window while the back leg of each sliding panel discourages dust and debris by penetrating the track.

Note: The flush sill is not warrantied against water penetration.

Thinline Sill

The ability of our signature Thinline Sill to disappear almost completely makes it appear virtually seamless. Staggered tracks expose a slim channel on which the panels roll.

Note: The Thinline Sill is not warrantied against water penetration.


Handles and Locking

Flush-Mounted Handle

The standard choice for the Series 600, the flush-mounted handle’s clean, narrow design allows panels to easily slide past each other or into a pocket. An optional keyed cylinder allows the window to be unlocked from the exterior. Finish choices are available in brushed nickel or black.

Premium Handle

Our optional premium handle features a minimal one-piece design, comfortable grip, and the option of a keyed cylinder that allows the window to be unlocked from the exterior. Finish choices are available in brushed nickel or black. The premium handle is not available on pocketing multi-slide window systems.


Aluminum Finishes
Satin Anodized
Dark Bronze
Hillside Bronze
Bison Beige
Stonish Beige
Autumn Night
Cinnamon Toast
Western White

Aluminum Finishes

Aluminum finishes for the Series 600 Multi-Slide Window 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 600 Multi-Slide Window to match virtually any finish.