Demolition Cost Calculator

Calculate demolition cost instantly and free by entering area, depth, and unit rate.

  • Free
  • No sign-up
  • Instant results

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How to use it

  1. Enter the floor area in square feet.
  2. Enter the demolition depth in feet.
  3. Enter your contractor’s unit rate per cubic yard.
  4. View total cost and volume instantly.

What it does – The Demolition Cost Calculator turns your project dimensions into a concrete budget. You input the floor area (sq ft), the depth you plan to remove (ft), and the contractor’s unit rate ($/cu yd). The tool first converts area and depth to volume in cubic yards using the industry‑standard division by 27, then multiplies that volume by the unit rate to give a total cost. Why it matters – Knowing the exact cost before you start helps you set realistic budgets, compare bids, and avoid surprise overruns. How to read the results – The volume figure shows how many cubic yards of material will be generated; the cost figure is the amount you’ll pay at the provided rate. Use these numbers to order disposal services or negotiate with suppliers.

Pro tips

  • Add a 10‑15% waste allowance to the volume for unexpected debris.
  • Round the volume up to the nearest whole cubic yard before multiplying.
  • Double‑check that the unit rate is quoted per cubic yard, not per ton.
  • Get at least two contractor quotes using the same volume for a fair comparison.

Real-life examples

  • Homeowner planning a basement removal and needs a quick budget estimate.
  • General contractor bidding on a commercial teardown wants to size the job accurately.
  • Property manager estimating demolition costs for a remodel to allocate funds.

Case study

John, a homeowner, needed to tear out his 800 sq ft basement to a 10‑ft depth. Using the calculator with a $45/cu yd rate, he saw a volume of 296 cu yd and a cost of $13,320. Armed with this figure, he secured a contractor quote within 5 days and stayed $2,000 under budget.

Frequently asked questions

How is the demolition volume calculated?
The calculator multiplies the entered area by the depth and divides by 27 to convert square‑feet‑feet to cubic yards.
Do I need to include waste in the calculation?
Add a percentage to the volume or unit rate manually; the tool shows the raw volume only.
Can I use the calculator for multiple floors?
Enter the total combined area and an average depth, or run separate calculations and add the results.
What if my unit rate is per cubic meter?
Convert the rate to dollars per cubic yard (1 cu yd ≈ 0.7646 m³) before entering.
Is the result a final quote?
It provides an instant estimate; final quotes may include permits, mobilization, and contingency costs.