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Decking Calculator

Our nifty decking calculator is just the job if you’re having trouble working out how many decking boards you need for your next project.

Just follow the instructions below and once you know how many boards you need, nip over to our online shop to see our complete range of decking boards.

How to use the Decking Calculator:
Firstly work out your sq metre coverage by multiplying Width x Depth.

Eg. If your width is 6m and your depth is 2m
6(w)  x 2(d) = 12sqm

Then find the closest sqm to what you require. From this you can then find out how many boards you require:

41 boards of W120mm x L2.4m  or  24 boards of W140mm x L3.6m

Square Metre Coverage

Treated Pine Deck Boards Required
W120mm x L2.4m
Treated Pine Deck Boards Required
W120mm x L3.6m
1 sqm 4 boards 3 boards
2 sqm  7 boards  5 boards
 3 sqm 11 boards 7 boards
 4 sqm 14 boards 10 boards
 5 sqm 17 boards 12 boards
 6 sqm 21 boards 14 boards
 7 sqm 24 boards 16 boards
 8 sqm 28 boards 19 boards
 9 sqm 31 boards 21 boards
 10 sqm 34 boards 23 boards
 11 sqm 38 boards 25 boards
 12 sqm 41 boards 28 boards
 13 sqm 45 boards 30 boards
 14 sqm 48 boards 32 boards
 15 sqm 51 boards 34 boards
 16 sqm 55 boards 37 boards
 17 sqm 58 boards 39 boards
 18 sqm 62 boards 42 boards
 19 sqm 65 boards 44 boards

Square Metre Coverage

Treated Pine Deck Boards Required
W140mm x L2.4m
Treated Pine Deck Boards Required
W140mm x L3.6m
1 sqm 3 boards 2 boards
2 sqm  6 boards  4 boards
 3 sqm 9 boards 6 boards
 4 sqm 12 boards 8 boards
 5 sqm 15 boards 10 boards
 6 sqm 18 boards 12 boards
 7 sqm 21 boards 14 boards
 8 sqm 24 boards 16 boards
 9 sqm 27 boards 18 boards
 10 sqm 30 boards 20 boards
 11 sqm 33 boards 22 boards
 12 sqm 36 boards 24 boards
 13 sqm 38 boards 26 boards
 14 sqm 41 boards 28 boards
 15 sqm 44 boards 30 boards
 16 sqm 47 boards 32 boards
 17 sqm 51 boards 34 boards
 18 sqm 54 boards 36 boards
 19 sqm 56 boards 38 boards

Board Width 120mm

Board Width 140mm