Our Decking Calculator Ensures You Order Everything You Need
Take the pain away from ordering all the things you need to build your dream decking area
Your Decking Order.
Made Easy.
Save Money
Keep to your budget by only ordering what you need
Save Time
Avoid having to go back and order more parts
Minimise Waste
Don't over order and avoid wasting valuable materials
Simple
Use our calculator to simplify the process
How Does the Decking Calculator Work?
We've been supplying decking for nearly 40 years, so it’s second nature to us when putting together a list you need for building your decking.


Use this diagram to work out the width, length, deck height and joist size then fill in the calculator below and let us do the heavy lifting.


There are a few handy custom options in there to choose to make the design unique to you.
What Size Joists Should I Use For My Decking?
The right joist size is vital for a deck’s structural integrity and safety. The choice between 100mm x 47mm and 150mm x 47mm joists depends on factors like span length, joist spacing, and the load from furniture, people, and environmental factors like snow.


The decking material type and thickness are also key considerations, as heavier materials may require larger joists or closer spacing. Additionally, it may be worth checking with the local building control for some advice.
Our Decking Calculator Makes Ordering The Right Materials Easy.
Once you’ve chosen your customisations and sizes, fill in the calculator below and let us create the order for you.
Keep in mind that our calculators are here to give you a helpful estimate of your quantities and costs based on rough measurements. We do not take any responsibility for miscalculations. Feel free to reach out to us for a friendly conversation about your project!
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