Plaster / Render

Type of mortar Depth of cover Backing onto 25kg will cover 1 tonne will cover
Base Coat 10mm Brick 1m² 40m²
Close Face Render 10mm Brick 1m² 40m²
Hair Plaster 10mm Lath 0.5m² 20m²
Top Coat 3-5mm Base coat 2m² 80m²

Building

Type of material Brick/stone size Joint height Joint depth 25kg will cover 1 tonne will cover
Brick 215 x 100 x 65mm 12mm 100mm 0.3m² 12m²
Stone 250 x 100 x 150mm 10mm 100mm 0.9m² 36m²

Repointing

Type of material Brick/stone size Joint height Joint depth 25kg will cover 1 tonne will cover
Brick 215 x 65mm 12mm 30mm 1m² 40m²
Stone 250 x 150mm 10mm 30mm 2m² 80m²

The tables above are only a guide to assist in estimating quantities of material required.

Limewash

Painted onto a … Amount Coverage (per coat)
Rough stone surface 16 litres 30m²
Smooth plaster surface 16 litres 60m²

At least 3-4 coats are usually required.

This is only a guide as coverage depends on the absorbency of the surface being limewashed.