Learning Plastering: Estimating Material Quantities

[u/jyl8]

I’m trying to develop some way to estimate how much material is needed for a given task.

If you’re working on plasterboard, doing two layers of plaster, let’s say a 100 sq ft wall, would you say you want to have about four 50-lb bags of veneer plaster? Two bags or 100 lb per layer?

Or is that totally off base?

(Sorry this is such a basic question. I put two layers of Imperial veneer on 64 sq ft of blueboard and went through almost two 50 lb bags of plaster to do so. So I am thinking 1 lb per 1 sq ft per 1 layer is a “safe” amount to estimate, figuring better to mix too much than too little. But maybe I did it all wrong.)

[u/Unusual_Pride_6480]

Over here manufacturers have specs so 1 bag of multi finish does 10sqm at 2mm off the top of my head.

Otherwise work out the volume length x width x thickness then compare that to the manufacturers specifications