Tool · D-01

Deck board calculator

Boards, joists, screws. Pick your board width and gap — get the exact count, linear feet, and a fastener tally.

Result · Buy this

boards × 16 ft

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Buy deck boards

×29

16 ft, 5/4 × 6

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Buy joists

×13

2 × 8 pressure-treated

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Buy deck screws

×10

#8 exterior · approx lb

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Note

Joist spacing: 16 in for standard PT decking, 12 in if you're installing composite at a 45° angle.

Inputs

Deck length

Deck width

Board material

Board length

Gap

Joist spacing

in OC

Cut waste10%

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