Wood Filler Calculator

Calculate the volume of wood filler needed to fill gaps, holes, cracks, and imperfections.

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How It Works

Wood filler comes in two main types: solvent-based (Bondo-style, hardens very hard, best for large repairs) and water-based (easier to sand, takes stain poorly). For stained projects, use a stainable filler or mix sanding dust with CA glue for an invisible repair. Always overfill slightly — filler shrinks as it dries. Sand flush after curing.