Total Material Cost
$41
Area
4.0 ft²
Epoxy
0.41 gal
Aggregate
11.1 lb
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Price as of Jun 27, 2026. Product prices and availability are accurate as of the date indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
Inputs
Result
Volume = 4 × 4 × 0.375 = 6 in³. Epoxy fills 30% = 1.8 in³ × 1.1 waste = 1.98 in³ = 0.009 gal. Aggregate: 0.7 × 6 / 1728 × 95 = 0.23 lb.
Inputs
Result
Volume = 24 × 24 × 0.5 = 288 in³. Epoxy: 288 × 0.30 × 1.10 / 231 = 0.41 gal. Aggregate: 288 × 0.70 / 1728 × 95 = 11.1 lb. Cost: 0.41 × $75 + 11.1 × $2 = ~$53.
Epoxy fills the gaps between aggregate chips, typically 30% of the total pour volume. A 24" × 24" tray poured 1/2" deep needs about 0.37 gallons of epoxy with a 10% waste buffer. Deep-pour epoxy is required for anything over 1/4" in a single layer.
| Project Size | Epoxy (gal) | Aggregate (lb) | Est. Cost |
|---|---|---|---|
| 12" × 12" coaster set | 0.09 | 1.8 | $8–$15 |
| 24" × 24" tabletop | 0.37 | 7.3 | $25–$45 |
| 36" × 24" counter | 0.56 | 10.9 | $40–$70 |
Marble chips are the most traditional and affordable at ~$1.50/lb. Recycled glass adds color for ~$2/lb. Mother of pearl creates a premium iridescent finish but costs $8/lb. Most DIY terrazzo uses 3/8" to 3/4" chip sizes mixed together.
For coasters and small items, 1/4" to 3/8" is sufficient. Tabletops and countertops should be 1/2" to 3/4" for structural strength. Standard epoxy can only be poured 1/4" at a time; deep-pour epoxy handles up to 2" in one layer.
After curing 24–72 hours, sand progressively from 80 grit to 400 grit to expose the aggregate pattern. Finish with a polishing compound and buffer for a glossy surface. Wet sanding reduces dust and produces a smoother finish.
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Last Updated: Jul 13, 2026
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