How to Use This Calculator

Calculate drywall area (walls + ceiling) and select which coat you are applying. Each coat uses different amounts. The calculator recommends appropriate bucket sizes.

Why Accurate Joint Compound Matters

Each finishing coat uses progressively less compound as joints are filled and smoothed. Knowing specific amounts per coat prevents buying too much (compound expires) or running short mid-coat.

Common Mistakes to Avoid

Buying all compound at once (limited shelf life), applying coats too thick, not letting coats dry fully, using wrong compound type for final coat, and poor mixing consistency.

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