Garden room estimator
What this works out
The steps
Work through these calculators in order. Each one takes the measurements from the step before.
- Base (as the shed base estimator)
- Stud walls
- U-values
- Insulation thickness
- Flat roof
- Electrics: maximum demand
- Electrics: armoured cable size
Costs come only from your own prices: there are no price figures on this site.
Questions for your builder and electrician
- Does the garden room need planning permission (height, distance to the boundary, use) or building control (size, sleeping in it)?
- How will the armoured cable get from the house, and how deep will it be buried?
- Is the supply big enough for heating in the garden room as well as the house?
- What base does this size of building need on this ground?