3/8" width, 25/32" thick, .020 gauge. Glazing channel not included with the aluminum window frame, but sold separately. For single strength glass order glazing channel model No. P7732 (Sku 267491), for double strength glass order glazing channel model No. P7744 (Sku 267516). For mitre cut window frame corners order model No. PL14318 (Sku 261653). For plastic square cut corner see sublist, order separately. Available in 72" and 94" lengths. Mill, white, and bronze.