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Table Top Epoxy Calculator
Calculate exactly how much table top epoxy you need for a flood coat. Enter the surface length, width, and coating thickness to get mixed epoxy in fluid ounces, milliliters, liters, and gallons.
💡 Quick reference for flood coats
1/8 inch flood coat: about 12.8 sq ft per gallon before waste
1/4 inch flood coat: about 6.4 sq ft per gallon before waste
Important: maximum coat thickness is product-specific. Many table-top epoxies use thin coats around 1/8 inch; always verify your product's instructions.
This calculator estimates the mixed epoxy for the flood coat itself. Porous wood may also need a separate seal coat; follow the product's seal-coat coverage guidance.
Table top epoxy coverage chart
| Flood-coat thickness | Pure geometric coverage per gallon | Use |
|---|---|---|
| 1/16 in | ~25.7 sq ft | Thin build / light coating |
| 1/8 in | ~12.8 sq ft | Common flood-coat planning depth |
| 3/16 in | ~8.6 sq ft | Thicker build; verify product limit |
| 1/4 in | ~6.4 sq ft | Maximum for some products; not universal |
These are geometry-only values before waste, edge runoff, and surface absorption. Your epoxy manufacturer's published coverage takes precedence.
Table top epoxy supplies
Once you know the amount, match the product and tools to the planned coat:
For a thick river channel or casting rather than a thin surface coat, use the Deep Pour & River Table Calculator.
Flood coat vs deep pour epoxy
A tabletop flood coat and a river-table pour solve different problems. Coating epoxy is designed to spread and self-level in a relatively thin layer across a large surface. Deep-pour resin is formulated for much thicker castings with slower heat generation. If your project includes both a deep river channel and a clear top coat, calculate the river volume separately with the Large Pour Calculator, then calculate the surface flood coat here.
Do not choose a thickness solely because it appears in this calculator. MAS Table Top Pro, for example, says not to exceed 1/8–1/4 inch per coat, while the exact maximum varies by product and conditions. Exceeding a product's stated limit can cause excessive exotherm, yellowing, distortion, or cracking.
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Table top epoxy calculator FAQs
How much epoxy do I need for a table top?
Multiply the table length by width by the planned flood-coat thickness. This calculator does that conversion and adds an optional 10% planning buffer. For example, a 24 × 48 inch table at a 1/8 inch flood coat is about 0.62 gallons before buffer, or about 0.69 gallons with 10% extra. Actual use varies with surface porosity, edge loss, and waste.
How thick should a table top epoxy flood coat be?
Follow the maximum coating thickness for your exact epoxy. Many table-top systems are designed for thin flood coats around 1/8 inch per application, while some manufacturers permit up to 1/4 inch. Do not assume every product can be poured to the same depth; exceeding the product limit can cause excess heat, yellowing, waves, or cracking.
Do I need a seal coat before a flood coat?
For porous wood, a thin seal coat is commonly recommended before the flood coat because it reduces air escaping from the grain into the wet epoxy. Seal-coat usage depends on the wood and product, so treat the flood-coat result from this calculator as the main coating quantity and follow the manufacturer's separate seal-coat guidance.
Can I use deep pour epoxy for a table top flood coat?
Use the epoxy type specified for your application. Table-top coating epoxies are formulated to self-level in relatively thin layers, while deep-pour epoxies are designed for thicker castings such as river channels. For a thin clear surface coat, use a table-top or coating epoxy unless your manufacturer specifically instructs otherwise.
How many coats of table top epoxy do I need?
A common schedule on porous wood is a thin seal coat followed by a flood coat, but the number of coats depends on the surface, desired build, and product instructions. If you want a thicker finish than one flood coat allows, calculate each flood coat separately and stay within the manufacturer's per-coat thickness limit.
How much area does one gallon of table top epoxy cover?
Coverage depends directly on thickness. One U.S. gallon contains 231 cubic inches, so in pure geometric terms it covers about 12.8 square feet at 1/8 inch thick or about 6.4 square feet at 1/4 inch thick before waste. Manufacturer coverage can be lower because of porosity, edge loss, and application waste.