Building Code Compliance,
Made Simple.

Free tools for homeowners, contractors, and DIYers. Instant pass/fail results against IRC 2021.

Available tools

🪟
Egress window
Check IRC R310 escape requirements for bedrooms & basements
● Live 🪜
Stair code
Rise, run, headroom & handrail compliance
● Live 📏
Ceiling height
Minimum height by room type & occupancy
● Live 🏗️
Deck joist span
Joist sizing & beam requirements by species
● Live 🌡️
R-value / insulation
Wall assembly IECC compliance by climate zone
rvaluecalculator.com ↗

Egress Window Calculator

Checks IRC Section R310 — minimum opening requirements for sleeping rooms

IRC 2021 · R310
🛒 Need a compliant egress window?
Home Depot Lowe's Amazon

⚠️ Codes reference IRC 2021. Always verify with your local AHJ (Authority Having Jurisdiction) before finalizing design or purchasing materials.

→ Also check wall insulation compliance at rvaluecalculator.com

More tools

🪜
Stair code
Rise, run, headroom & handrail
● Live 📏
Ceiling height
Minimum height by room type
● Live 🏗️
Deck joist span
IRC 2021 Table R507.5 span tables
● Live 🌡️
R-value / insulation
IECC climate zone compliance
rvaluecalculator.com ↗