Nominal vs Actual Sizes

Comprehensive database of lumber and material dimensions showing nominal vs actual finished sizes

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Configure unit system and material type filters
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Search for specific lumber dimensions

Configure settings and search for lumber dimensions

About this calculator

Nominal vs Actual Sizes: A lumber reference calculator for converting nominal sizes to actual dimensions.

How it works

  • Choose board size standards and unit system.
  • Select or search nominal size values.
  • The tool returns typical actual finished dimensions.