Decking Calculator
Enter your deck size, choose which way you’re running the boards, and we’ll calculate boards, joists (500mm centres), membrane and screws. You can WhatsApp the list to our team for a quick sanity check.
1) Deck size
Board coverage: we allow 145mm per board (standard board width).
We also show the logic in the WhatsApp message so you can see how the quantities were calculated.
We also show the logic in the WhatsApp message so you can see how the quantities were calculated.
2) Which way are you running the decking boards?
Why this matters:
Running boards the long way can require joins (mixed lengths). Running the short way usually avoids joins.
Running boards the long way can require joins (mixed lengths). Running the short way usually avoids joins.
3) Wastage allowance
Wastage covers trimming, offcuts and odd cuts around edges.
Joists are supplied in 4.8m lengths.
Note: You can adjust quantities before adding to basket.