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Turf & Topsoil Calculator

Turf rolls, grass seed, topsoil, excavation, edging and sowing/weather guidance.

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12 advanced inputs hidden. Switch to Advanced to fine-tune.

Confidencehigh· 85Complexitymedium· 30

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Area
15m²
Perimeter m
16m
Turf rolls (1m²)
17
Topsoil
1.5m³
Topsoil
2.1t
Topsoil bulk bags
3
Fertiliser
0.53kg
Lawn edging (perimeter)
16m

Heads-up: Turf needs at least 100 mm of decent topsoil (150 mm over poor or compacted subgrade). Loose topsoil settles by ~20%, so the 100 mm you spread becomes ~80 mm after firming. Why it matters: Thin topsoil = shallow roots = brown lawn in the first dry summer.

Quantities pre-filled from your calculation (15.0 m²). Partner links — we may earn a small commission if you buy, at no cost to you.

Essentials for this job

Quantities include a ~10% waste allowance. Guide prices are indicative UK ranges (materials only, inc. VAT) — always confirm with the supplier before ordering.

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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.