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Epoxy Terrazzo Resin-to-Aggregate Mix Calculator

Calculate the resin and aggregate mass needed for an epoxy terrazzo floor pour, from a target resin:aggregate ratio.

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 2026-08-27 · v1.1.0

Market
Imperial · sales tax

Aggregate mass needed

685.88 lb

Check your inputs

Exact resin:aggregate ratios vary by manufacturer system and desired aggregate exposure — confirm your terrazzo system's specified ratio before ordering material.

Resin needed
195.97 lb
Total mix mass
881.85 lb

At the values currently entered, the aggregate mass needed works out to 311 kg. The largest intermediate quantity is total mix mass, at 400 kg — check that step first if the total looks off. Confidence is moderate: the method is sound, but real materials and site conditions vary. Figures are shown for United States, where IRC 2024 is the governing residential reference; switch the market above if you are building elsewhere.

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.

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

  • Epoxy terrazzo mixes are typically specified by a resin:aggregate ratio by weight (commonly around 1:3.5 to 1:4); total mix mass = pour volume × blended mix density, split proportionally by the ratio

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Frequently asked questions

Why is resin mass calculated from the total mix mass rather than directly from area?
Epoxy terrazzo is specified as a ratio of aggregate to resin by weight within the total blended mix, so the total mix mass (from pour volume × density) is split proportionally: resin is 1 part out of (1 + ratio) total parts, and aggregate is the remainder.
Does the ratio affect the total mix mass?
No — the total mix mass depends only on pour volume and blended mix density. The ratio only determines how that fixed total mass is divided between resin and aggregate.
Where do I find my product's exact ratio and density?
These vary by manufacturer system and by the aggregate gradation and exposure look you want, so always confirm the specified resin:aggregate ratio and blended mix density on your terrazzo system's technical data sheet before ordering material.