How it is calculated
Gypsum mixes often use closer to 0,8–1,2 kg. Cement mixes use more. You can type the figure from the bag in place of 1,5.
kg = area × mm × rate × (1 + waste)
Where the numbers come from
- Area — unit in the field: m²
- Thickness — unit in the field: mm
- Usage — unit in the field: kg/m²/mm
- Waste — unit in the field: %
Example
10 m² in a 10 mm layer at a rate of 1,5 kg, with no waste, is 150 kg: 5 bags of 30 kg.
Questions
Does the thickness vary along the wall?
Calculate the sections separately, or use an average thickness.
Not a 30 kg bag?
Divide the kilograms by the weight of your own bag. As a guide, the screen divides by 30.
Primer and mesh?
They are not included in the mix mass.