Decking calculator

Estimate decking boards, joists, fixings and waste.

Timber deck material estimate

Enter the deck dimensions and board specifications to estimate boards, joists and fixings.

Deck length

Deck width

Board width

Gap between boards

Board length

Joist spacing

Cutting allowance

Screws per fixing

Deck area—

Board rows—

Board linear metres—

Boards to buy—

Number of joists—

Joist linear metres—

Screws—

Purchased board area—