Ekodeck Composite Decking Calculator

Estimate How Much Material You Need To Build Your Deck

Before you embark on any decking project, it’s important to plan ahead. One of the key planning factors will be knowing how much decking material you’re going to need. A reliable deck material calculator will take the guesswork out of your next decking project by helping you determine the number of decking boards you’ll need. 

Please note - Depending on the shape, size and layout of the deck you are building, you may need additional boards to complete your project, especially if you are running full length boards and have wastage/offcuts which are not taken into consideration with our calculator.


Once you know how much material you need, you can calculate your composite decking cost by visiting the Bunnings website and checking the composite decking prices.

Here’s how our decking calculator works:

  1. Add the measurements for your decking area into the deck board calculator. This will calculate the number of boards you need (including a default 5% wastage)
  2. Select your product and make your colour choice
  3. Select your profile
  4. Select your installation system
  5. Select your wastage (5% wastage is recommended to account for measuring errors)

Once this is done, simply add your email address and we’ll email you the full results.

By using our deck span calculator, you’ll get a quick and accurate estimate of how much decking material you’ll need.

Available from Bunnings stores across Australia, Ekodeck is versatile and easy to install. Requiring no special tools, installation is simple for home DIY enthusiasts and building professionals alike.

Ekodeck is your low-maintenance alternative to timber decking. Easy to install and maintain, long-lasting and great-looking – it’s the obvious choice for your next decking project.

Please note: This is not a deck cost calculator. For best results using a composite decking price calculator, please refer to bunnings website to obtain the decking prices and multiply the amount with the results obtained below.

How much do I need? Calculator

Our simple calculator takes the guess work out of determining how much you need for your next project.

Deck specifications

m x
m =
Area incl. {{ wastage * 100 }}% wastage

Product selection

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