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Use this concrete slab calculator to work out exactly how much concrete a slab needs — in cubic metres, reinforcing mesh sheets, premix bags and delivered cost. It handles rectangular, L-shaped, round and thickened edge beam slabs. The short answer A concrete slab calculation is length × width × thickness, with every measurement converted to … Read more

Work out exactly how much concrete you need for a slab, footing, post hole or set of steps — in cubic metres, premix bags, tonnes and dollars. The short answer Concrete volume is length × width × thickness, with every measurement in metres. A 4 m × 3 m slab at 100 mm is 4 … Read more