How to use the calculator


Our easy-to-use composite decking calculator allows you to calculate your decking quantities. Just enter the dimensions of your deck area to estimate the quantity of materials required.

You also have more detailed instructions in this article:  5 Tips to Measuring Your Deck Area.

Composite Decking Calculator



First select your Profile on the top left area.


Click in the cells below and enter your dimensions for a quick and easy estimation.

Repeat the step if there’s more than one area.

STEP 3: 

Once you have used our composite deck material calculator to estimate the number of boards you’ll require, you can email the calculation to yourself.


Contact one of our friendly suppliers for an accurate quote on how much they’ll cost.

How to measure your area:

If you have a decking area that is not a simple rectangle then break it up into separate areas so you can calculate the total square metres.

Deck SizeLength (m)Width (m)Area (M2)
Area 1
Area 2
Area 3
Area 4
Total M2

Wastage %

Number of Boards required

Cobra T-Clips

Starter Clips

Used when board is laid horizontally against a wall. Allow for 1 clip per joist along the length of the wall.

Fixings are prepacked into Boxes or Bags which cannot be split.

Please note that these calculations are an approximation only so your overall pricing may vary if working off unit quantities and pricing.

Please refer to the following Installation guidelines before ordering your goods and embarking on your NewTechWood decking installation:

Email yourself these calculations

Exact quote

For all product pricing details please contact your nearest NewTechWood reseller

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