Steel Project Index / Detailer Tools / Paint · coating area estimator
tonnage → surface area → gallons per coat

Paint / coating area estimator

Rough surface area from total steel weight and section class, and gallons per coat from your coverage rate — for coating quotes and material planning.

Formula & assumptions

Surface-area-per-ton factors are planning assumptions - actual area depends on the section mix. area = tons × class_factor; gal_per_coat = area ÷ coverage. Estimating aid only; the coating spec and applicator govern.

Verify with project engineer, contract documents, and applicable code/specification. Estimating aid only — not a design tool, not legal advice.

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