Download an A2 size (16.5″ x 23.4″) print-friendly “Steel Doors – Recommended Selection and Usage Guide” infographic that mentions different levels of steel doors.

This infographic explains criteria for using different levels of steel doors. Also, this infogrpahic states applications of different levels of steel doors across different building types.

Along with selection and usage of steel doors, this infographic also explains design nomenclature of standard steel doors per Steel Door Institute (SDI)

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