IRC

Posts tagged #IRC

5 articles tagged with “IRC”.

Stair nosing projection dimension diagram

Stair Nosing Explained: What It Is and Why Code Requires It

Stair nosing is the small overhang at the front edge of a tread, and building code sets specific limits on how far it can project and how it has to be shaped.

Basement stair headroom minimum dimension diagram

Building Codes6 min read

Basement Stairs: Code Requirements and Design Tips

Basement stairs code follows the same rules as any other interior flight, plus a few extra considerations for low ceiling height and moisture. Here is what to plan for.

Attic access opening minimum dimension diagram

Building Codes6 min read

Attic Stairs: Code Requirements, Types, and Installation

Pull-down, fixed, or spiral: attic stairs code depends on whether the space counts as habitable. Here is the opening size code requires and how to pick the right stair type.

Bar chart comparing OSHA, IRC, and ADA handrail height ranges

Building Codes5 min read

Stair Railing Height Codes: IRC vs. OSHA vs. ADA Compared

Three different codes set three overlapping handrail height ranges. Here is a side-by-side comparison so you know which number applies to your project.

Labeled diagram of stair rise, run, tread, and riser

Guides7 min read

How to Calculate Stair Rise and Run (Step-by-Step Formula Guide)

Learn how to calculate stair rise and run with simple formulas, a worked example, and the code limits each number has to fall within.

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