US Aluminum 450 Series Storefront Door Frame - Left Hand - Clear Anodized - Knock Down Frame

The US Aluminum 450 Series storefront door frame is a heavy-duty 1-3/4" x 4-1/2" aluminum framing system engineered for commercial entrances. This Left Hand (LH) frame is factory prepped for offset pivot hinges and designed to provide precise alignment and long-term support for US Aluminum storefront door systems.

Frame Only – Door Sold Separately

This listing includes the frame only. Matching US Aluminum 250, 400, and 550 Series doors are available but sold separately. Contact us if you need a complete door and frame package.

Compatibility

This Left Hand frame is designed for use with the following US Aluminum offset pivot storefront door series:

• US Aluminum 250 Series Narrow Stile Doors
• US Aluminum 400 Series Medium Stile Doors
• US Aluminum 550 Series Wide Stile Doors

Fully compatible with both HLSO (Hinge Left Swing Out) and HRSO (Hinge Right Swing Out) door configurations.

Frame Dimensions

• Outside Frame Dimensions: 39-1/2" Wide x 85-3/4" Tall
• Inside Frame Dimensions: 36" Wide x 84" Tall
• Recommended Rough Opening: 40" Wide x 86" Tall

Knock Down Construction

Ships in a knock down (KD) configuration for lower freight cost. Minor assembly is required in the field and can be completed by any storefront installer.

4" Aluminum Threshold Included

Each frame includes a durable 4" wide x 1/2" tall aluminum threshold, providing a smooth transition at the entrance.

Clear Anodized Finish

The clear anodized aluminum finish provides excellent corrosion resistance and a clean, modern architectural appearance suitable for most commercial storefront designs.

Production Time

Standard production lead time: 4 weeks.