Methodology & Sources
The calculator estimates geometric volume for one tabletop coat or river-table layer, then compares complete kits within each product system. It is a purchasing estimate, not a pour schedule or application approval.
Volume and allowance
For measurements in inches:
Mixed US gallons = length × width × thickness ÷ 231
Centimeter inputs are converted to inches by dividing by 2.54. One US gallon is 3.785411784 liters. The selected allowance is added to the base volume: total = base × (1 + allowance ÷ 100).
For example, 96 × 36 × ⅛ inches gives approximately 1.870 gallons. Adding 10% gives approximately 2.057 gallons. Both resin and hardener are included in that quantity.
The default 10% is an editable example, not a validated waste factor. Surface absorption, seal coats, overflow over edges, mixing losses, and separate finish coats are not independently calculated. Practical coverage may differ from geometric volume.
Measuring your project
For a tabletop, measure the top surface and one coat’s thickness; the estimate assumes a sealed surface with contained edges. For a river table, measure only the channel and use its average width. Irregular widths and depths make the result approximate. Enter one intended layer, not the full depth of a multi-layer project.
Kit combinations and cost
For each product, the calculator searches combinations of catalog kit sizes that cover the unrounded required volume. It never combines different resin systems. The catalog uses quarter-gallon increments and the tool supports estimates up to 100 mixed gallons; that software limit is not a permitted batch size.
“Lowest listed subtotal” minimizes the sum of kit prices, then purchased volume. “Least leftover material” minimizes unused capacity, then price. Displayed quantities are rounded to three decimal places, but kit selection uses unrounded quantities.
Prices are the September 7, 2026 manufacturer snapshot in US dollars. Shipping, tax, checkout discounts, and live stock changes are excluded. Some WiseBond bundles include colorants; no separate value is subtracted for them. Leftover material means unused kit capacity, not mixed epoxy that can be stored for later.
Depth and temperature screening
Products outside the checked depth or temperature limits are excluded from priced options and shown with an explanation. Remaining options are not labelled suitable or approved. Leaving temperature blank leaves that check unresolved. A matching temperature does not check humidity, material temperature, total pour mass, cooling, preparation, or compatibility.
Where manufacturer instructions disagree or only describe a typical application, the calculator requests confirmation instead of extending those instructions to other conditions. This can exclude a product that the manufacturer might approve for a specific project.
Manufacturer sources
- TotalBoat TableTop: coating guidance varies within the page between ⅛–¼ inch and a ⅛-inch flood-coat ceiling. Other thicknesses require confirmation. The checked temperature range is 70–80°F; coverage figures also differ.
- TotalBoat Fathom: the checked river-layer range is 1–2 inches at 60–80°F. The manufacturer discourages thinner pours. Its deeper casting allowance does not apply to river tables.
- Upstart FAQ: Table Top describes ⅛-inch coats. Deep Pour limits large pours to 1.5 inches, while general guidance allows up to 2 inches. The calculator requires confirmation above 1.5 inches; the large-pour definition and application temperature remain unresolved.
- WiseBond Bar & Table Top: typical ⅛-inch finish coats at 77–85°F. Other thicknesses require confirmation.
- WiseBond Deep Pour: river layers of ½–2 inches and a product-page range of 77–85°F. Its use guide gives wider temperature guidance. Large-volume and cooling requirements need confirmation.
Sources reviewed September 7, 2026. Current labels and manufacturer instructions should be checked before purchase and use. We have not measured actual yield or tested these products side by side.
Report an issue
Send a correction with your inputs and the supporting source. Product performance, structural use, mixing schedules, and cure-time predictions are outside this calculator’s scope.