
America's #1 Authorized US Aluminum Distributor
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.
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.
This Left Hand frame is designed for use with the following US Aluminum offset pivot storefront door series:
Fully compatible with both HLSO (Hinge Left Swing Out) and HRSO (Hinge Right Swing Out) door configurations.
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.
Each frame includes a durable 4" wide x 1/2" tall aluminum threshold, providing a smooth transition at the entrance.
The clear anodized aluminum finish provides excellent corrosion resistance and a clean, modern architectural appearance suitable for most commercial storefront designs.
Standard production lead time: 4 weeks.

Yes, anyone can purchase from Automatic Door and Hardware.
The time you receive your order is dependent on two factors: product lead time and the shipping method. A product lead time is the time it takes for our company to manufacture the product, package it, and prepare it for shipping. The product lead time is listed on each product, right above the "add to cart" button. Please note that product lead times can vary depending on supply chains and seasons. Please contact [email protected] before ordering if you need to meet a specific deadline. The shipping method is the transit time of the product. This is the time required for the freight carrier to pick the product up from our warehouse and deliver it to your location.
Automatic Door and Hardware is an American owned business located in Texas. We do not drop ship products from China.
If you need a product but in a different hand or finish and cannot find that particular model then please contact [email protected]. One of our specialists can provide you the right product link to the appropriate product.
Sales tax is dependant upon your state of residence. If sales tax applies to your state, you will see the amount in the checkout before you place your order. If you are a government facility, school, or university and are tax exempt, please contact [email protected] before placing your order to avoid paying sales tax.
If you are ever in doubt if a product will work on your door or application, please contact [email protected] before placing your order. We want to get you the right products. Most of the time a simple email with one of our technical experts can clarify if the product will be suitable for you or not.
Automatic Door and Hardware takes pride in our customer service team responding to email inquiries immediately. Most emails are replied to within minutes. However, our team only responds during normal business hours in the work week. If you have not received a response within 24 hours (not including weekends) please check your SPAM folder. Most likely the response is in there.

If you have a question, need a quotation, or assistance of any kind reach out to us directly by emailing [email protected]. One of our experts will contact you back immediately.