Earthwork estimating is the process of calculating the cost of all site earth-moving work required before building construction begins. A complete earthwork estimate covers site clearing and grubbing, cut and fill volume calculations, mass grading, foundation and trench excavation, compacted fill placement, haul and disposal costs, borrow material import, erosion and sediment control, and equipment hours. It goes far beyond simply measuring area on a plan and requires understanding soil types, swell and shrinkage factors, haul distances, equipment productivity, and geotechnical specifications to produce an accurate bid number.

Earthwork estimating specifically covers the earth-moving scope: excavation, grading, cut and fill, trenching, and compaction. Sitework estimating is a broader term that includes earthwork plus underground utilities, paving, site concrete, drainage structures, and landscaping. We offer earthwork as a standalone estimate or as part of a complete sitework package depending on your project scope and bid requirements. Explore our demolition estimating services to assist your broader process.

When soil is excavated, it expands in volume by a factor called swell. When fill material is compacted, it shrinks below its loose volume by a factor called shrinkage. A cubic yard of clay in the ground becomes 1.30 to 1.35 cubic yards when loaded into a truck, and that same material compacts to about 0.90 cubic yards when placed as fill. Ignoring swell and shrinkage factors leads to under-trucking, incorrect cut and fill balance calculations, and significant cost overruns. We apply soil-specific factors to every volume calculation in our estimates.

We use the average end area method for linear grading and road earthwork, and the grid or borrow pit method for site mass grading. Both methods are applied to your grading plan using digital takeoff tools to extract cross-section areas at regular intervals. Net cut and fill volumes are calculated, swell and shrinkage factors applied, and the site balance is determined before pricing. Where your site has a fill deficit, we estimate borrow material import quantities and costs. Where there is excess cut, we estimate haul and disposal costs.

At minimum we need your civil grading plan in PDF or CAD format with existing and proposed grade contours shown, and the project address for regional pricing. For more accurate estimates, a geotechnical report specifying soil type and compaction requirements, a survey of existing conditions, and any phasing or access constraints are helpful. For early feasibility estimates, a conceptual site plan with proposed pad elevations and building footprints is often sufficient to produce a rough cut and fill estimate.

Yes. Erosion and sediment control quantities including silt fence, inlet protection, stabilized construction entrance, and temporary seeding are included in every earthwork estimate for sites disturbing 1 acre or more, as these are required under NPDES general permit conditions in most US states. For smaller residential projects, we include perimeter control as applicable based on local requirements.

Yes, at the feasibility and conceptual design stage. With proposed building pad elevations, site topography, and approximate cut and fill slope ratios, we can produce a conceptual earthwork budget that gives you a reliable cost range for land acquisition decisions and preliminary project financing. We clearly label conceptual estimates with the basis of estimate and the design assumptions used so you understand the uncertainty range.

For residential lots and small commercial sites under 2 acres: 24 hours from plan receipt. For medium commercial sites between 2 and 10 acres: 24 to 48 hours. For large sites and heavy civil projects: 48 to 72 hours. Same-day rush is available for residential and small commercial projects when plans are received before noon ET. For very large or complex sites, contact us before submitting to confirm your timeline.