Stud wall calculator: profiles and boards

Width, height and stud spacing give the CW and UW profiles, the plasterboards and the anchors for a partition wall.

Your figures

Result

To buy
10 boards
Area10.4 m²
Studs7
CW studs7 × 3 m
UW tracks3 × 3 m
Anchors14

Building material catalogue — 5 materials in the catalogue

How we calculate it

What you enter

  • Width (m)
  • Height (m)
  • Stud spacing (m)
  • Profile length (m)
  • Boarded sides

What to watch out for

60 cm spacing is standard under a 1.2 m board. Go down to 40 cm under a heavier finish or tiles. Boards are counted for both faces.

Formula

studs = ⌊ Width ÷ Stud spacing ⌋ + 1
CW profiles = studs × ⌈ Height ÷ Profile length ⌉
UW profiles = ⌈ 2 × Width ÷ Profile length ⌉
fixings = 2 × (⌊ Width ÷ 0.6 ⌋ + 1)
boards = ⌈ Width × Height × Boarded sides × 1.10 ÷ 2.4 ⌉

The site's engine is a 1:1 port of the Android app's code.

Frequently asked questions

How many profiles does a partition wall take?

The CW studs stand at the spacing you choose and the UW tracks run along the top and the bottom. The calculator turns both into whole profiles of the length you enter.

What stud spacing should you use?

600 mm is the standard under a 1.2 m board. Go down to 400 mm for heavy cladding or tiles. Boards are counted for both sides of the wall.

The same formula in the app LiczMat for Android uses the same engine offline — with the material catalogue and results saved into a project. Download