Gravel Calculator
Calculate exactly how much gravel, crushed stone, or decorative chippings you need for your driveway or garden path.
Enter Measurements
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Volume Needed:
0.00 m³
Weight Required:
0.00 Tonnes
Approx Bulk Bags (~850kg):
0
We recommend rounding up slightly and allowing a small percentage for waste or settling.
Frequently Asked Questions
How deep should decorative gravel be?
For standard 20mm decorative gravel on a path or driveway, a depth of 40mm to 50mm is ideal. Any deeper and it becomes difficult to walk or push a wheelie bin across.
Should I put a weed membrane under gravel?
Yes, laying a heavy-duty permeable woven landscape fabric (weed membrane) under the gravel is crucial. It stops weeds growing up from the soil and prevents your expensive gravel from sinking into the mud.
What size gravel is best for a driveway?
For driveways, 20mm angular gravel is best. It locks together under the weight of tyres. Smaller 10mm pea shingle will stick in tire treads and scatter everywhere.
How much does a bulk bag of gravel weigh?
A standard UK builders' bulk bag (Jumbo bag) of gravel typically weighs between 800kg and 850kg.