DECORATIVE AGGREGATES CALCULATOR
Our Decorative Aggregate Calculator helps you easily estimate the number of bulk bags required for your project. Simply enter the length, width, and depth of the area you want to cover, and get an instant calculation. This tool ensures you order the right amount of aggregate for your garden, landscaping, or driveway project, saving you time and hassle.
1) Area to cover
Work out how much decorative aggregate you need, plus optional weed membrane and MOT Type 1 sub-base.
Type either metres OR feet/inches — we'll auto-fill the other.
Irregular shapes? Add areas together and enter the totals.
2) Aggregate, depth & waste
Tap a stone to select it. We'll recommend the best value pack (bulk vs bags).
Thicker layer = more material.
Auto picks the cheapest for your area.
3) Weed membrane & base layer
Helps prevent weeds coming through the decorative aggregate over time.
Optional — recommended for new areas to reduce sinking.
Auto chooses bulk vs bags based on best value.
Your recommended materials
Prices update live. You can adjust quantities before adding to basket.
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NEED HELP?
Uncertain about aggregates?? Call 01698 421 366 or email us at sales.east@kelvintimber.co.uk for a custom quote or friendly advice.
By using our calculator, you agree to our Terms and Conditions.
Send Us A Quote Request
Head over to our quote page and send the team a list of materials and we will see what our best price is.