Every figure on this site is an estimate, produced from standard formulas, published bag yields and typical material densities. Real quantities move with ground conditions, sub-base preparation, compaction, moisture content, over-dig and ordinary waste.
- Always include a wastage allowance and round up when ordering.
- Confirm final quantities and mix specification with your ready-mix supplier or builders’ merchant before placing an order.
- Prices shown are indicative market ranges for 2026 and will differ by region, load size and supplier.
- Nothing here is structural engineering advice. Foundations, retaining walls, suspended slabs and any load-bearing element must be designed by a qualified engineer and comply with the building regulations or codes that apply where you are.
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