Free Composite Decking Calculator

You’ll need enough composite decking to cover your required space, as well as some extra boards in case you need to fill a specific area. Luckily, all our decking boards are easy to cut to size with standard tools.

If you have a standard square or rectangular space, all you need to do is measure (in metres) the width and length of the area. Once you have that, you can use our calculator to work out composite decking prices. If you have an odd shaped, or L-shaped decking area, you’ll need to take two measurements for each section and calculate the prices separately.

Yes. Composite decking has a longer service life and requires less maintenance than traditional timber decking, saving you money in the long run. Our composite decking calculator gives an indication of how much you could save.

Because our decking is weather-proof, it can be easily bought and installed throughout the year. However, if you want to enjoy your new deck, we’d recommend getting it by late-spring or early-summer.

Over its lifespan you’ll actually save money on repairs and maintenance, keeping the cost low compared to traditional wood decking. If you’re looking for the best value in the Dura Deck range, Dura Deck Eco is the cheapest board, but still has all the strength of a modern composite deck.

For detailed costs on installation, you can speak to our specialist composite decking suppliers. Alternatively, you can check out our installation guide if you want to do it for yourself.

This diagram is an easy way of demonstrating how to measure the space, whether you’ve got a standard square or rectangular area, or a slightly more complex installation which is made up of multiple square shapes.

If you have a standard, equal-sized space, like ‘Area A’ in our diagram, all you need to do is measure the width and length of the area in metres. This will be one horizontal side and one vertical side. Once you have those two numbers, all you have to do is add them to our composite decking calculator and you’ll instantly know much much it’ll cost to deck the space with one of our high-quality composite decking solutions.

If you have multiple areas or an L-shaped deck you’ll need to make two separate calculations. Firstly, take the length and width of ‘Area A’ and get the total area of this section. Then you’ll need to input the length and width of ‘Area B’ into the decking calculator to find out how many boards you need for that section. When you add the two numbers together, you’ll know exactly how much decking you’ll need for your project.