It estimates cement and sand quantities needed for plaster based on wall area, plaster thickness, and mix ratio.
Plaster volume = Wall area × Thickness (in meters). Convert thickness properly (e.g., 12 mm = 0.012 m).
Common plaster mixes include 1:4 or 1:6 (cement : sand) for finishing, but follow local engineering guidelines for structural work.
Yes — add about 5–10% wastage for material losses and surface irregularities.