Decking Calculator

Find how many decking boards.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

This calculator works out how many decking boards and how many linear meters of timber a given deck area needs, based on the board width and the gap left between boards for drainage and expansion.

DIYers and contractors use it when planning a garden deck or patio, to order the right quantity of boards up front rather than under-buying and having to match batches later, or over-buying and wasting material.

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