Materials & Quantities

Land Clearing & Grubbing Debris Volume Calculator

Estimate the volume of brush, vegetation, and grubbing debris generated from clearing a site area.

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Imperial · sales tax
The total site area being cleared and grubbed.

Use the full footprint of the area being cleared, including any buffer zones being grubbed to the same depth.

The average depth of brush, vegetation, and root mat being removed across the area.

This is a single average depth applied across the whole area — actual depth varies with vegetation density (deeper in tree lines/hedgerows, shallower in open grass).

Estimated clearing debris volume

1,590 yd³

Medium confidence

Vegetation density and root mat depth vary significantly across a site (denser in tree lines/hedgerows, shallower in open grass) — this uses a single average depth across the whole area; break large sites into sub-areas with different average depths for a more accurate estimate.

Then change the inputs to see how far the answer moves.

Show calculation logic

How this was calculated

Formula source(s)

  • Debris volume = Cleared Area × Average Brush/Root Mat Depth — a standard area-times-depth volumetric estimate applied to land clearing and grubbing debris, analogous to any other area-times-depth material takeoff (e.g. topsoil stripping).

Inputs used

Cleared Area
21530 sq ft
Average Brush/Root Mat Depth
2 ft
Final result1,594.81 yd³

Confidence note: Vegetation density and root mat depth vary significantly across a site (denser in tree lines/hedgerows, shallower in open grass) — this uses a single average depth across the whole area; break large sites into sub-areas with different average depths for a more accurate estimate.

What this calculation does not cover

  • This is the mat as it stands, and nothing leaves site in that state. Torn-out brush and root mat bulks up hard once it is loaded — commonly two to four times the in-situ figure loose in a truck — so haulage is priced against a number several times this one. Chipping brings it most of the way back down and mulching in place removes it from the haul entirely, so the same result supports three completely different quantities depending on the disposal route chosen.
  • An average depth spread over an area cannot see individual trees. A mature stump and its root ball is a volume in its own right sitting well below any brush-mat depth, and the trunk and canopy above ground are not a depth at all — a treed strip or a hedgerow yields a multiple of what its footprint suggests. Count anything much over 150 mm at the butt separately and add it on.
  • Grubbings come out with soil attached, and that decides both what it costs and where it can go. Root mat holds a heavy fraction of dirt, which is what the weighbridge charges on, and it is also what stops the load being accepted as clean green waste at a composting site — mixed organic-and-soil material usually ends up at landfill on the higher rate.

Estimated cost — your price

This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.

brush and root mat 2 ftbrush and root mat 0.61 msubgrade

Computed in your browser — nothing you enter is uploaded. Presented in US customary units and US trade terminology. Where a formula follows a published standard, that standard and its edition are cited beside it on this page; where none governs, the page says so. Local amendments override model codes — verify against the code in force where you build.

Sources checked 2026-09-06 · in the site-wide review of 2026-09-06 · v1.0.1

Regulatory standards & verification citations1
  1. Debris volume = Cleared Area × Average Brush/Root Mat Depth — a standard area-times-depth volumetric estimate applied to land clearing and grubbing debris, analogous to any other area-times-depth material takeoff (e.g. topsoil stripping).
Cite this page

Your workspace

Most jobs need more than one number. Add the calculators you need next and they open right here, underneath this one — your figures stay on screen and nothing is lost to a page change.

Now that you have the number

These guides cover the work this quantity is for — the first ones run this calculator inside the section that raises the question.

  • A treed lot bills twice: once for the brush and stumps it makes, and again at the scale house, where soil on a root ball changes the rate you pay.

  • A rear extension makes four kinds of spoil, not one heap — and each carries its own density, its own vehicle and its own answer on contamination.

How to calculate land clearing & grubbing debris volume in 3 steps

  1. Cleared AreaThe total site area being cleared and grubbed.
  2. Average Brush/Root Mat DepthThe average depth of brush, vegetation, and root mat being removed across the area.
  3. Estimated clearing debris volumeThe tool computes the estimated clearing debris volume from those figures and shows the formula, its sources, and a confidence rating alongside it.

Estimated clearing debris volume by cleared area

Page defaults, not your figures above.

Cleared AreaEstimated clearing debris volume (yd³)
10,000 sq ft729
15,000 sq ft1,094
20,000 sq ft1,458
25,000 sq ft1,823
30,000 sq ft2,187
35,000 sq ft2,552
40,000 sq ft2,916

Frequently asked questions

How is land clearing debris volume estimated?
Debris volume = Cleared Area × Average Brush/Root Mat Depth — the same area-times-depth method used for other volumetric material takeoffs like topsoil stripping.
Why does the estimate use a single average depth?
Vegetation density and root mat depth vary significantly across a site — denser in tree lines and hedgerows, shallower in open grass. This calculator applies one average depth across the entire cleared area as a simplified estimate.
How can I get a more accurate estimate for a large or mixed site?
Break a large site into sub-areas with different average debris depths (e.g. treeline vs. open field) and run this calculator separately for each, then sum the results.
Preliminary estimate, not certified engineering. This tool produces an indicative quantity calculation for planning purposes only — it is not a certified structural analysis, a guaranteed material takeoff, or a substitute for building department approval. Always verify measurements on-site and have a licensed contractor or structural engineer review any load-bearing, code-sensitive, or safety-critical work before purchasing materials or starting construction. Spotted an arithmetic or standards error? Report it to contact@craftquantities.com with your inputs — a confirmed fix gets a permanent check of its own, so the same mistake cannot come back.