Concrete Calculator & Guide
Work out how much ready-mix concrete you need, understand which mix suits your job, and request a quote.
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Estimate only, rounded up to a standard 0.25 m³ order increment. Confirm minimum load charges and exact pricing with your supplier.
Which concrete mix do I need?
| Grade | Typical use |
|---|---|
| C10 / C15 | Blinding, non-structural fill, bedding for kerbs and paving |
| C20 | General-purpose domestic work, garden paths, edging |
| C25 | Domestic floor slabs, footings, patios |
| C30 | Driveways, garage floors, external paving subject to vehicle loads |
| C35 | Structural foundations, heavier-duty commercial bases |
| C40 | Heavy-duty industrial floors and structural commercial work |
These are general UK industry grade classifications for guidance only. For any load-bearing or structural element, confirm the exact mix design with a structural engineer and your supplier before ordering.
Delivery & ordering — what to expect
Truck capacity
A standard ready-mix truck typically carries around 6m³. Larger pours may need multiple loads or a pump, which most suppliers can arrange.
Site access
Trucks need reasonable width, headroom and turning space to reach the pour location. Tight or restricted access should be flagged when you order.
Lead time
Ready-mix is usually ordered a day or two ahead, though this varies by supplier and demand — confirm current lead times when you enquire.
Weather
Very hot, cold or wet conditions can affect curing and placement. Your supplier can advise on additives or timing if conditions are marginal.
Frequently asked questions
Get a quote
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