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Decking Calculator

Use our free, simple UK decking calculator to quickly calculate the materials needed for your project. As with this useful deck board calculator, you can find all the answers you need to your most often asked questions, such as 'how many deck boards do I need?'

Composite and timber decking are suitable for a wide range of landscape projects, including patios and pool areas. Decking is designed to withstand everything thrown at it, including bicycles, barbecues, partygoers, paddling pools, and garden furniture, all while still retaining its natural beauty. 

 

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Frequently Asked Questions

What timber do I need for decking?
Pressure-treated timber is one of the best options for decking frames because of its affordability.
How many deck boards do I need?
You'll need to calculate the area of the deck in m2 to figure out how many deck boards you'll need. To do this, multiply your deck's length by its width. For example: The length of your deck will be 5 metres, and the width will be 4 metres. 5 x 4 = 20, so the total area of your deck will be 20m2. Then you'll need to figure out how big a single board is. You must double the board's length by its width to achieve this. Finally, divide the deck's area by the area of the deck to figure how much decking you'll need to build your new deck.
Do you need planning permission for decking?
You may need planning permission for decking if it covers more than fifty percent of your garden or is installed more than 30cm off the ground.

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