Concrete & Building
Concrete & Building
Patios, shed pads, footings and drives: work out volume, bags or ready-mix, steel and cost before the truck arrives - and know exactly what your numbers assume.
Tools
Calculators for This Category
Field guides
Practical Guides
- How Much Concrete Do I Need? Volume, waste tiers and the bags-versus-ready-mix decision, in plain English.
- Concrete Mix Ratios Explained What 1:2:3 really means, and when a bagged mix is the smarter choice.
- Concrete Slab Thickness Guide Four inches, five or six? Patios, drives and shed pads, plus why soil and load decide.
- Concrete Reinforcement: Rebar & Mesh What steel actually does, what it does not do, and how much is common practice.
- The Concrete Curing Guide Why the week after the pour matters as much as the pour itself.
Bag Yield Reference
| Bag size | Yields | Bags per cubic yard |
|---|---|---|
| 60 lb | 0.45 cu ft | 60 |
| 80 lb | 0.60 cu ft | 45 |
One cubic yard = 27 cubic feet = 0.76 m³. The calculator applies these exact constants.
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