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Composite Decking Calculators

Find out how many composite decking boards, fixings, and accessories you’ll need with our composite decking calculators. We’ve partnered with leading brands such as Triton and Composite Prime to offer our customers the quickest and easiest way to order composite decking online. Just the dimensions of the area you’d like to deck, and our calculators will do the rest. All it takes is two clicks.

Composite Prime XS Composite Prime XS
Guarantee 10 Years
Delivery Time 3 - 5 Days
Board Length 3600mm
Reversible No
Price Per Board £34.28 Calculate
Composite Prime Composite Prime Dual
Guarantee 25 Years
Delivery Time 3 - 5 Days
Board Length 3600mm
Reversible Yes
Price Per Board £48.47 Calculate
Frequently Asked Questions

How Do I Use These Calculators?

To use one of our composite decking calculators, you just need to know the dimensions of your future deck. As long as it’s square or rectangular, you’ll only need to enter these measurements once. Then, our calculator will tell you exactly how much composite decking you’ll need to complete your project. If your deck is a more unusual shape, you’ll need to break it into separate squares or rectangles, and calculate those areas separately. Once you’re happy with the result, you can then add the materials to your basket ready to check out.

NB: OOur composite decking calculators cannot determine how many optional extras such as step boards and angle trims you will need. Therefore, you’ll need to add these to your kit yourself after calculating

Can I Choose What Colour I Want?

Yes, on the final calculator screen (“Results”), you’ll be able to choose between a selection of colours and finishes for your decking boards.

Can Someone Else Use the Calculator for Me?

If you don’t feel comfortable using our calculators, get in touch with our award- winning customer service team. As long as you know the size of your future deck, they’ll be able to do the calculations for you. Simply call them on 01295 565 565, email [email protected], or use our handy live chat to get in touch.