Planter & Raised Bed Calculator

Structure, fill, drainage, liner plus balcony/roof load checks.

All calculators

Inputs

Length(m)

Width(m)

Planter height(mm)

Internal height of the bed. Sleeper beds over 600 mm act as retaining walls and need bracing.

Number of planters

Structure

Location

Balcony/roof/podium triggers a structural load check.

What's it for?

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

Confidencemedium· 53Complexitylow· 22

Bulk bags: 16

25 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.