IRC vs IBC

Posts tagged #IRC vs IBC

1 article tagged with “IRC vs IBC”.

Modern commercial building staircase with wide steps and metal handrails on both sides

IBC Stair Code for Commercial Buildings: Key Differences from IRC

IBC commercial stairs need 7 inch max risers, 11 inch treads, 44 inch width and rails both sides. Here is how those rules differ from residential IRC stairs.

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Calculations are for reference only. Always verify with local building codes.