
Pottery Studio Bookkeeping: How to Cost Kiln Firings, Glaze, and Clay for True COGS
A ceramics studio's true cost per piece includes two kiln firings, labor, 12–15% clay shrinkage, and a 5–15% failure allowance — not just $1 of clay. Here's the six-line COGS breakdown, per-firing kiln allocation, and the deferred-revenue treatment for classes and memberships.










