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Material · T-02 Established Materials & Methods

Straw

The dry stalks left after a grain harvest. Used baled for walls and chopped as fibre in cob and plasters.

Origin
agricultural by product
Moisture
Straw rots if it stays wet. Details that shed water matter more than the bale itself.

Sources

  1. Pilgrim Holiness Church (Arthur, Nebraska). Wikipedia. · accessed November 4, 2026
  2. Cob code appendix approved for the 2021 IRC. ICC Building Safety Journal, August 3, 2020. · accessed November 4, 2026

Fact-checked November 4, 2026. Spotted an error? Tell us.

In the Journal

Field Notes

Is it legal? Natural building and the code

A plain guide to model-code appendices for cob, straw bale and tiny houses, and why an appendix existing is not the same as your town allowing it.