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Concrete Volume by Slab Size

Worked concrete volumes and bag counts for common slab sizes and thicknesses, with a 5% waste allowance — the same default as the Material Calculators tool. Pick your slab size below, or use the calculator directly for anything else.

• 3×3 m, 100 mm
• 3×3 m, 125 mm
• 3×3 m, 150 mm
• 3×4 m, 100 mm
• 3×4 m, 125 mm
• 3×4 m, 150 mm
• 3×6 m, 100 mm
• 3×6 m, 125 mm
• 3×6 m, 150 mm
• 4×4 m, 100 mm
• 4×4 m, 125 mm
• 4×4 m, 150 mm
• 4×5 m, 100 mm
• 4×5 m, 125 mm
• 4×5 m, 150 mm
• 4×6 m, 100 mm
• 4×6 m, 125 mm
• 4×6 m, 150 mm
• 5×5 m, 100 mm
• 5×5 m, 125 mm
• 5×5 m, 150 mm
• 5×6 m, 100 mm
• 5×6 m, 125 mm
• 5×6 m, 150 mm
• 6×6 m, 100 mm
• 6×6 m, 125 mm
• 6×6 m, 150 mm
• 6×9 m, 100 mm
• 6×9 m, 125 mm
• 6×9 m, 150 mm

Need a size that isn't listed? Use the calculator directly — it takes any dimensions. ← all tools