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Clay Soil Cubic Yards to Tons Calculator

Convert a clay soil volume into short tons for ordering, haulage and storage planning.

Computed in your browser — nothing you enter is uploaded. Figures are presented for United States against IRC 2024, and every formula is cited under regulatory standards below.

Last verified 2026-08-26 · v1.0.0

Market
Imperial · sales tax

Approximate weight

15 short tons

High confidence

About 1.5 short tons per cubic yard for clay; heavier than loam and highly sensitive to moisture. A planning figure, not a specification. Confirm the density with your supplier before ordering by weight.

Conversion factor applied
1.5 short tons per cu yd

Clay is the excavated material most likely to complicate a job, and its weight per cubic yard is high enough to matter for haulage. What makes clay difficult is not density but behaviour: it holds water, shrinks and swells with the seasons, and becomes unworkable when wet. Excavated clay also bulks substantially, so the spoil from a trench occupies noticeably more space than the hole it came from — which is why disposal volumes routinely exceed the excavation figure.

Add the equipment this sizes

This result is a specification — 15 short tons — not a quantity. Put the thing it sizes into your project: how many, what you call it, and your supplier’s price.

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 — confirmed fixes become pinned regression tests.

[Schema Verified] Computed in alignment with American Concrete Institute (ACI 318-19) formulas and International Residential Code (IRC 2024) spatial boundaries.

Regulatory standards & verification citations

  • Typical bulk density used here: approximately 1.5 short tons per cubic yard
  • Density varies with moisture, grading and composition — the supplier's ticket weight governs

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Frequently asked questions

Why does clay cause foundation problems?
Because it shrinks as it dries and swells as it wets, and that seasonal movement acts on whatever sits in or on it. It is why foundation depths in clay areas are greater and why nearby trees are a recognised complication.
Can I reuse excavated clay as backfill?
Rarely a good idea around structures or drainage. It compacts poorly, holds water against what it surrounds, and continues moving seasonally. Granular fill is specified instead for good reason.
Why is clay so hard to dig when dry?
Because it sets extremely hard as it loses moisture, and equally becomes a sticky mass when saturated. There is a relatively narrow moisture window in which clay works easily.