Recommended Selection And Usage Guide For Standard Steel Doors

- Jun 25, 2019-


Standard steel doors are classified in four levels: Level 1-1-3/4'' and 1-3/8'' standard duty, Level 2-1-3/4'' heavy duty, Level 3-1-3/4'' extra heavy duty and level 4 - 1-3/4'' maximum duty.

Each of the four levels noted above offer a rangeconstruction models and designs to meet archi-ctural requirements for preference and standard steel door construction models are fullush seamless and. stile and rail

Recommended minimum gauge requirements for thearious levels and models of standard steel doors arendicated in table 1