How many dumpsters will this teardown fill?

Describe the building, the flat concrete coming out, or both. The estimate updates as you type, and the slider shows how the count changes with each roll-off size.

The job
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Use the satellite view or LOJIC's measure tool to get the building footprint or slab areas, then enter them below. LOJIC covers Louisville and Jefferson County.
The building
Square feet, all floors
Foundation concrete is loaded into the 20-yard concrete containers.

0 dumpsters

20-yard roll-off

Typical allowance for this size. Change it to match your hauler's quote.
0 cubic yards of loose debris
0 tons of debris
0 lbs per cubic yard (mix density)

Every size, side by side

Size Needed by volume Needed by weight Dumpsters
How this is estimated

Building debris weight comes from per-square-foot factors for each construction material, adjusted for the building type. A full wood-frame teardown works out near 55 lbs per square foot before the foundation, which lines up with published averages for residential demolition once a slab is included. Masonry, steel and concrete buildings use heavier factors.

Flat concrete is figured from area and thickness at 150 lbs per cubic foot, so a 4-inch slab weighs about 50 lbs per square foot. Broken up, it takes roughly twice its in-place volume and is loaded at about 2,000 lbs per cubic yard.

The dumpster count is whichever is higher: the count needed to fit the volume, or the count needed to stay under the weight allowance. All concrete, from flatwork or a removed foundation, is counted in 20-yard concrete containers with their own weight allowance. They are usually filled only to a marked line so the load stays liftable. Treat the result as a planning estimate and confirm sizes, weight limits and overage fees with your hauler before you book.