CRL-U.S. Aluminum 4-1/2" Thermal Break Door Threshold 21'4"

• 6063-T5 alloy and temper — corrosion-resistant aluminum extrusions
• Extruded aluminum sections for architectural systems and curtain walls
• Stock and custom cut-to-size lengths available
• Standard anodized and painted finishes; custom finishes on request

CRL-U.S. Aluminum Extrusions are made in the U.S.A. to exacting standards for architectural applications. Precision-designed sections fit together tightly for reliable structural integrity and a clean, professional appearance. We offer stock lengths in standard finishes and can provide custom finishes or cut-to-size lengths to meet project specifications.
Over the years U.S. Aluminum has produced hundreds of custom extrusions—from rounded center glaze sills to extended curtain wall face caps—so if it can be extruded, we’ve likely done it. NOTE: Custom extrusions may require minimum orders and/or die charges; details will be provided with your quote request.

For a quote or custom extrusion consultation (SKU: TT24599), contact CRL Customer Service today.