Painter

Room Paint

Wall paint for a room, less doors and windows.

Room length(m)

Room width(m)

Wall height(m)

Coats

Coverage(m2/L)

Doors

Windows

Paint needed

5.51 L

Net wall area30.3 m2

4 L tins2

10 L tins1

Formula

litres = (wall area x coats) / coverage

(30.3 x 2) / 11 = 5.51 L

Doors counted at 1.8 m2, windows at 1.5 m2. Coverage about 10-12 m2/L per coat on smooth surfaces; less on bare or rough.