Wall plastering material calculator.
Estimate plaster mortar, sand and cement bags from area, thickness and mix ratio.
Wall plastering material inputs
Enter both wall faces if both are plastered. Excludes reveals, mesh, multi-coat repair, surface variation and site wastage.
Method: Wet plaster volume is area × thickness. Apply the dry-volume factor, then divide dry mortar between cement and sand using the entered ratio.
Inputs used: Plaster surface area = 1,000 sq ft; Plaster thickness = 15 mm; Sand parts in cement:sand = 6 parts; Wet-to-dry volume factor = 1.33 factor
Assumptions: Site and equipment inputs are planning assumptions supplied by the user or displayed by the calculator.
Scope and warnings: Enter both wall faces if both are plastered. Excludes reveals, mesh, multi-coat repair, surface variation and site wastage. Obtain site-specific engineering and equipment checks before purchase or installation.
How this wall plastering material calculator works
Wet plaster volume is area × thickness. Apply the dry-volume factor, then divide dry mortar between cement and sand using the entered ratio.
A worked example
At 15 mm, 1,000 sq ft needs more mortar than a 12 mm coat because thickness changes volume directly.
Does this include both sides?
Only if both sides are included in area. Reveals, mesh, repairs and wastage need allowances.
Calculations run on your device. Review your results before exporting or sharing them.
Include every plastered face
Measure each face and reveals that receive plaster. Thickness has a direct effect on volume, so use the intended average coat thickness rather than a nominal wall dimension.
Repair patches, uneven walls, multiple coats, mesh and finishing systems can change consumption. Confirm the mix and application method with the contractor.
Published by ToolMitra — methods and editorial approach.