Premium Fiberglass Glass Thickness The thickness of the glass within Classic Craft doors varies whether it is a lip lite or flush-glazed item. Below are the glass thicknesses and which sizes it is applicable to. Lite Insert 1″ Glass Sandwich – Exception: DLCCO-1008-CE (3/4” thick) Flush-Glazed 3/4″ Glass Sandwich Updated on November 25, 2024 Was this article helpful? Yes No