PRICE DROP: Selected Softwood Railway Sleepers now available at even better prices!

Decking Calculator online
Use our Decking Calculator to help you determine how many deck boards, edge trims and accessories you need for your next project. Choose from our FSC-certified traditional timber decking, architectural timber decking or low-maintenance composite decking made from 95% recycled plastics.
Choose your shape:
Enter your dimensions:
We recommend having 5%
wastage to allow for those awkward angles and to make sure you don't
come up short
The gap allowance is the distance side by side between each board. This
is a fixed value to allow for shrinkage between the seasons and is the
gap you'll have once clips are assembled.
Please select which type of board you want to use:
Please select the board colour/size
Please select which sides you would like to add skirting trim:
Please select which sides you would like to edge:
Please select if you require joists:
In order to build your deck, you require the following extras. We have calculated how much of each product is required based on your deck size
Selected shape and dimensions:

4m Structural Composite Joist
£ inc VAT
10
£
Total square meters:
m2
Linear meters:
Gap allowance:
The gap allowance is the distance side by side between each board. This is a
fixed value to allow for shrinkage between the seasons and is the gap you'll
have once clips are assembled.
mm
Wastage:
We recommend having 5% wastage to
allow for those awkward angles and to make sure you don't come up short
%
Total Cost:
£ inc VAT