Aluminum Tee Bar 6063T5 is square corner architectural grade alloy tee bar usually used for trim purposes or to align installations of flat material. We stock 6061T6 and 6063T5 but can special order other alloys. Aluminum Supply will custom cut to size any Tee Bar with no minimum order required. We will accept custom orders. Please email us using the Contact Us or phone us to discuss your requirements. Aluminum T-Bar