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Ted's Timber

Decking calculator

Estimate the total linear metres of decking boards required for a simple rectangular area.

Your deck measurements

Adjust the figures below. The estimate updates as you type.

Deck length (m)

Deck width (m)

Board width (mm)

Spacing between boards (mm)

Wastage allowance (%)

This calculator estimates board length, not the number of boards at specific stock lengths or the quantity of joists and fixings.

Estimated materials

Your decking estimate

Total deck area50.0 m²

Board length before wastage543.5 lm

Additional wastage54.3 lm

Estimated linear metres to order597.8 lm

Always confirm actual sizes and laying direction. Round up to appropriate stock lengths and allow for cuts and site conditions.

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