Concrete & Foundation Calculators

A slab is volume plus reinforcement plus the thickened edge nobody remembers to price. These run the common sizes end to end, so you can compare a 20x20 patio against a 24x24 garage pad without redoing the arithmetic each time.

Footings carry the load a slab only spreads. Continuous trench footings and cylindrical pier footings are priced from different shapes, so they are calculated separately here.

A driveway is a slab that carries vehicle loads, which means more thickness, more reinforcement and control joints on a tighter spacing than a patio of the same area.

Ordering concrete is its own decision: how many trucks, how big the short-load fee is, and the yardage above which bagging it yourself stops making sense.

What happens to concrete after the pour: formed steps priced by riser, and coatings priced by coverage rate rather than volume.

Concrete volume and cost for continuous strip footings.

Concrete volume, bag count and slab cost.

Concrete volume, step layout and cost for poured stairs.

Truck count, short-load fees and total delivered cost.

Concrete, base and cost for a 20 by 40 driveway.

Concrete, base and cost for a driveway slab.

Epoxy kits, primer, etch and cost for a garage floor.

Concrete, base and cost for a two-car garage slab.

Concrete, base and cost for a patio slab.

The crossover point between bags and a ready-mix truck.

Bar count, total footage and cost for a rebar mat.

Concrete, base and cost for a 20 by 20 foot slab.

Concrete, base and cost for a 30 by 40 shop slab.

Concrete, thickened edge and cost for a monolithic slab foundation.

Concrete volume and cost for round tube footings.