Plaster Quantity Calculator
Work out the plastering for a wall. Enter the area, the coat thickness and the mix, and get the mortar plus cement and sand — with a both-sides option, since a compound wall is usually plastered on both faces.
External wall plaster is commonly ~15-20 mm (often two coats); internal ~12 mm.
For 100 sqm at 15 mm.
Uses a 1.27 dry-volume factor and the 1:6 (general) mix. Allow wastage, and remember external plaster is often two coats (rough + finish).
Indicative only. Real plaster quantities vary with the surface roughness, the number of coats, the mix and site wastage. This is for ordering and budgeting — confirm the thickness and mix with your contractor, and follow the site bill of quantities for the actual order.
Related Guides — Deep-dive reading
Floor Screed and Mortar Bed in India: Ratios, Thickness, Slopes and Curing
A specifier-grade guide to cement-sand screed and mortar bedding for Indian floors — bonded vs unbonded vs floating, 1:4 to 1:6 mixes, 25-75 mm thickness, falls to drains, mixing, curing and defect control.
Flooring & SurfacesGypsum Board (Drywall / Plasterboard) Guide for India: Types, Systems & Selection (2026)
What gypsum board is, why it dominates Indian false ceilings and drywall partitions, the grades - regular, moisture-resistant, fire-resistant, acoustic - the metal-framed drywall system, and how it compares to cement board, calcium silicate and traditional plaster. A specify-and-select guide.
Building MaterialsNatural Light Planning for Indian Homes
Orientation, Windows, and Openings — A Professional Guide for Architects
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