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The California Straw Building Association (CASBA) is an all-volunteer non-profit organization committed to building with straw. Our members are people interested in and/or dedicated to straw building -- including owner-builders, architects, engineers, and contractors. Learn more about CASBA.

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We invite you to join us: as a volunteer, an aspiring owner-builder, a professional, or just as a “friend of straw.”

Benefits of Membership

Make a tax deductible donation in support of CASBA's mission, including testing and ongoing Straw Bale code work.

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  • Engineers
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Download the Code - Free!

Appendix AS – Strawbale Construction with Commentary

Appendix AR - Light Straw-Clay Construction with Commentary

* From the 2021 International Residential Code (IRC)

CASBA is fiscally sponsored by the Tides Center, a 501(c) (3) non-profit organization.

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