4 calculators
Concrete calculators
Slabs, footings and post holes: cubic yards and exact bag counts for 40, 60 and 80 lb mix.
Concrete Slab
Enter slab size and thickness to get cubic yards, exact 40, 60 or 80 lb bag counts and ready-mix cost, with waste included.
Post Hole & Footing Concrete
How many bags of concrete per post?
Concrete Steps
Enter the number of steps, rise, tread depth, width and landing to get cubic yards and bags of concrete, with code checks.
Concrete Block
Get 8x8x16 CMU or cinder block counts for a wall, bags of mortar and grout for filled cells, with doors and windows subtracted.
Frost Line Depth by State
How deep footings must go, from each state's building code.