Welcome to our advice column where our estimators offer thoughtful answers to your questions on estimating. Go here to this form to submit an anonymous question.

Codes are typically enforced at a local level, so while there are national and international codes, different areas will have their own regulations that local architects and structural engineers must account for in the design process. Very rarely will a builder get to a point where materials themselves are being questioned vs. the installation of said materials.

1. There are several sites that you can visit to find the most recent (2021) International Building Code (IBC) and International Residential Code (IRC) books that you can filter by state and territory. These will help guide you if you are needing to check your work as you go.
2. One of our favorites is https://codes.iccsafe.org/codes/i-codes
   
3. Most buildings designed in a particular area must meet local codes, but never be afraid to ask your local building department if you are unsure if a material or installation meets local codes.

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