Concrete Calculation Guides
Plain-English guides to estimating concrete: the formulas, the unit conversions, and the worked examples behind every calculator on the site. Start here if you want to understand the math, then use the calculators to do it instantly. Prefer to skip ahead and run the numbers? Our free concrete calculator does the volume and bag math for you.
- How Much Concrete Do I Need?Size slabs, footings, and posts, then estimate bags.
- Concrete YardHow big a yard of concrete is, and what it weighs and costs.
- Concrete SlabCost, thickness, reinforcement, and how to pour a slab.
- Concrete CurbCost, edging, curb and gutter, and how to pour one.
- Concrete FloorFinishes, rooms, and every guide in the silo.
- Concrete ResurfacingEvery kind of overlay, what it fixes, and the bags it takes.
- Sakrete Mix TypesEvery Sakrete mix, yield, and what it is for.
- Concrete Block WeightBlock weight by size and ASTM C90 density class.
- Concrete Block SizesNominal and actual size of every CMU, the shapes, and metric sizes.
- How Concrete Is MadeFrom the cement kiln to the batch plant to your wheelbarrow.
- How to Mix ConcreteBy hand, in a bucket, or in a drum mixer.
- Sakrete vs QuikreteThe two brands compared on published data.
- How to Build Concrete StepsForms, footing, rebar and finishing entry steps.
- Concrete Cure TimeStrength by day, and when you can use it.
- Pouring Concrete in Cold WeatherMinimum temperatures, protection days, blankets and the first winter.
- How to Cure ConcreteWater, plastic or curing compound, and how often to water.
- What PSI ConcreteStrength by project, and why air matters more.
- Fence Post DepthHow deep, how wide, and what actually governs it.
- How to Pour a Concrete PatioSlope, base, the house wall, joints and a broom finish.
- Dry Pour ConcreteWhat the method is, and what the bag makers say.
- Concrete EstimateHow to estimate concrete for any project.
- Stamped Concrete PatternsSlate, brick, wood and stone, and how the color gets in.
- QuikreteWhat Quikrete is, and how to use it.