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Read this Forum Thread about Tips for Laying Deck Boards

Deck and Floor Board Calculator See also: Deck Stump, Bearer and Joist Calculator Centres, Spacings, Plans and Costs

Deck Width Board Width Board Thickness Optimal Gap Deck Length + Waste 0 % 4 % 5 % 6 % 7 % 8 % 9 % 10 % Joist Spacing Cost / Linear metre $

Deck Area m²

Possible Members and Gap

Gap

Deck and floor board spacing diagram

Only Mark Every 3rd 4th 5th 6th 7th 8th Board Show in Diagram If your deck is slightly out of square (different widths), calculate results for both widths, and set out each end to suit. If necessary, adjust number of deck boards to match in both calculations, and see if different board gaps at each end of deck are acceptable, compared to equal gaps and cutting the last board at an angle.

Running Board Measurements. Click list to format vertically.

Mark-out