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California Straw Building Association

CASBA is:
a Straw Think Tank,
a Trade Support Organization,
an Open Source Incubator,
and a Community of Practice.

We are 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.

Why Straw?

Because the built environment is in a polycrisis and straw is a polysolution

As a building material, straw is:

  • Biodegradable & nontoxic
  • Carbon-storing
  • Annually renewable
  • By-product of grain production (efficient land use)
  • Sourcing can support regenerative land management
  • Good insulation
  • Accessible to non-traditional builders
  • Local/bioregional supply chains