Building Codes

Building Codes for Stairs

Stair code requirements vary between commercial and residential buildings. When beginning construction on a new building or doing renovations on an existing structure, it is important to be familiar with the different regulations. Always consult with your local building department to ensure proper compliance before starting your project.

Building Code Resources

The International Residential Code (IRC) dictates stair code requirements specific to residential buildings including minimum width and rise and tread depth.

The International Building Code (IBC) sets the commercial building code for stairs. The IBC stair codes are slightly different than the ones set by the IRC.

The Stairbuilders and Manufacturers Association (SMA) offers visual interpretations of the IRC Stair Codes for purchase.