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Enter your dimensions and get an estimated quantity for your job. Add a wastage allowance, then request a trade quote when you are ready.
Enter the wall or ceiling area to calculate the quantity needed.
Browse the catalogue or send your list through for a trade quote.
Estimate plaster, render or plasterboard quantities for walls and ceilings. Enter the area and the type of finish and the calculator returns bags of plaster, render or the number of plasterboard sheets required.
30 m² skim coat
Needs roughly 3 bags of finish plaster at 2–3 mm thickness.
20 m² two-coat render
Needs about 10–12 bags of render depending on thickness.
16 m² plasterboard wall
Needs roughly 6 sheets of standard 2.4 m × 1.2 m board.
The calculator gives you a sensible starting quantity. For structural work, always confirm the specification and grade with your engineer or building control before ordering. We stock the standard trade lines and can source specialist grades or sizes with short lead times.
Working from drawings? Send us your dimensions, schedule or take-off and we will check the estimate, advise on the right product grade and wastage allowance, and book a delivery slot that matches your programme. We reply the same business day with a written trade quote.
Request a trade quote on the materials you have just calculated.