Garden SurveyorGravel Calculator
Tonnes, bulk bags, membrane and edging for any gravel surface.
Inputs
5 advanced inputs hidden. Switch to Advanced to fine-tune.
Confidencehigh· 100Complexitylow· 10
- t required
- 1.2t
- Bulk bags (0.85t)
- 2
Heads-up: Weed membrane and edging aren't extras — without them gravel migrates into beds and weeds grow through within a year. Order ~10% more than the calculated tonnes for top-ups. Why it matters: Settled depth ≠ loose depth: order ~20% more loose than the settled figure.
5 detailed breakdowns hidden — switch to Advanced for the full breakdown.
This app provides general UK guidance and material estimates only. It is not legal, planning, engineering or building-control advice. Always confirm requirements with your local planning authority, building control, utility providers, manufacturers or qualified professionals.