Looking for Machine Stress Rated Lumber?

The MSR Lumber Producers Council’s database has all the major mills that produce MSR in North America, broken down by lumber species, size and grade.

Search our Mill Database →

MSR Workshop

The MSRLPC hosts an educational workshop each year to bring together the entire lumber supply chain to discuss and learn more about MSR market trends.


This section will provide you with an easy-to-use maximum span reference tables for Machine Stress Rated lumber joist and rafters.

About Us

The MSR Lumber Producers Council (MSRLPC) is a non-profit trade association representing all the major producers of MSR and MEL lumber in North America.

We stress quality!