Best Estimating Software for Earthwork & Grading Contractors (2026)

# Best Estimating Software for Earthwork & Grading Contractors (2026)

Earthwork is the foundation of every construction project — literally. Grading, excavation, fill, compaction, and erosion control set the stage for everything that follows. But earthwork estimating is notoriously difficult because soil conditions, haul distances, and compaction requirements are highly variable.

Why Earthwork Estimating Is Different

Cut/fill balancing — The goal is to minimize off-site hauling by balancing cut and fill volumes on-site. Software must calculate 3D surfaces from survey data to optimize earthwork quantities.

Swell and shrink factors — Excavated soil ("bank") expands ("swell") when loosened and compresses ("shrink") when compacted. Clay swells 30–40 %; sand 10–15 %. Missing these factors means wrong truck counts.

Haul analysis — Off-site disposal or borrow pit import is priced by the truck-load. Distance, road conditions, and dump fees drive cost.

Dewatering — High water tables require dewatering systems (well points, sump pumps) that add significant cost.

Erosion and sediment control — SWPPP (Stormwater Pollution Prevention Plan) compliance is required on every site. Silt fence, inlet protection, and stabilization are priced per linear/square foot.

How OneEstimate.ai Serves Earthwork Contractors

OneEstimate.ai includes earthwork-specific features:

Cut/fill calculator — Input existing and proposed grades; get net cut/fill volumes with swell/shrink factors applied.
Haul analysis — Truck size, cycle time, and distance-based cost per cubic yard.
Soil-type library — Pre-loaded swell/shrink factors for clay, sand, gravel, rock, and topsoil.
SWPPP templates — Erosion control items (silt fence, wattles, inlet protection, stabilized construction entrance) priced per unit.

Pricing: Free (unlimited) → PRO $49/mo → BUSINESS $99/mo + $15/user.

👉 Start your free earthwork estimate

Frequently Asked Questions

Can OneEstimate.ai calculate cut/fill from survey data?

Yes. Input existing and proposed surface elevations, and the AI calculates net earthwork volumes with swell/shrink factors.

Does the software handle dewatering estimates?

Yes — well-point and sump-pump templates with flow rates, equipment rental, and power costs.

Is OneEstimate.ai free for earthwork contractors?

Yes — the Free plan is unlimited. PRO ($49/mo) adds PDF exports and historical cost analytics.

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