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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 volume of concrete or mortar required in cubic metres.
Browse the catalogue or send your list through for a trade quote.
Estimate the volume of concrete or mortar you need for footings, slabs, columns, brickwork and blockwork. Enter your dimensions and the calculator converts them into cubic metres, then into bags of cement and tonnes of sand or ballast for ordering.
1 m³ concrete footing
Needs roughly 12–14 bags of cement and around 1.5 tonnes of ballast.
10 m² brickwork mortar
Needs about 4–5 bags of cement and 500 kg of sharp sand for a 1:5 mix.
0.5 m³ mortar for blockwork
Needs roughly 6–7 bags of cement plus the matching sand.
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.