Debris & Disposal Calculators
Demolition debris is bought twice: once as dumpster volume and once as landfill weight. Both calculators start from what you are tearing out.
There are 2 calculators here: Demolition Debris & Weight Calculator (demolition debris weight, loose volume, truckloads and disposal cost) and Construction Dumpster Size & Cost Calculator (dumpster size, overage risk and rental cost for a job).
They all work the same way: quantity first, then a waste allowance you can change, then a price built from verified figures and adjusted for your state. Cost is always a range rather than a single number, and every assumption behind it is printed on the page with its source and the date it was last checked.