Materials Planner

Bar Top Epoxy Calculator

Plan perfect pours for strong, glossy, level finishes easily. Set dimensions and coats with reliable waste allowances included. Include edges, corner radius, cutouts, and extra volume options. View volume, mass, kits, cost, and batches instantly. Export results as CSV or PDF for records easily.

Inputs
Applies to base rectangle only.
≈ 0.5 mm
≈ 3.0 mm

Additional rectangles (islands)
#Length inWidth in
Use for independent sections; perimeters are treated separately.
Cutouts
#TypeDim A inDim B in
Type: Rectangle (A×B) or Circle (A=diameter; B ignored).
A : B

$
Heuristic planning to avoid exotherm; adjust to your system.
Presets stored locally. Shareable link encodes current inputs.
Example data Click “Use” to load
#SystemLengthWidthSeal × thkFlood × thkEdge heightWaste %
1Imperial96 in26 in1 × 0.02 in1 × 0.118 in1.5 in15
2Metric240 cm65 cm1 × 0.5 mm2 × 3.0 mm38 mm18
3Imperial72 in20 in0 × 0.02 in1 × 0.118 in1.25 in12

Coverage quick reference by thickness

Thickness Per gallon (ft²) Per liter (m²)
Rule of thumb: 1 liter covers 1 ÷ thickness(mm) square meters.

Common kit sizes and coverage @ 3.0 mm (≈1/8 in)

Kit size Volume Coverage (ft²) Coverage (m²)
Use for quick planning; calculator refines for your geometry and waste.
Results
Total epoxy volume
0.000 L  (0.000 gal)
Total mass
0.000 kg  (0.000 lb)
Part A volume
0.0 mL
Part B volume
0.0 mL
Breakdown
ItemAreaThicknessVolume
Run a calculation to see details.
Suggested kits
Choose combinations totaling at least the required gallons or liters.
Cost estimate
Enter a price to see an estimate.
Batch plan
Set max batch volume and pot life to plan mixes.
Formula used

Areas and volumes are computed per feature and coat, then waste is applied.

Top area Atop = Abase + ΣArect − ΣAcutout − Acorners
Abase = L × W
Acorners (rounded) = πr²

Perimeter with rounded corners (base):
Pbase = 2(L + W) − 8r + 2πr

Edge area Aedge = (selected edge lengths) × edge height

Per-coat volume V = A × thickness
Vtotal = (ΣV + Vextra) × (1 + waste%)

Mass m = Vtotal(mL) × density (g/mL) ÷ 1000.

How to use
  1. Choose units, enter base size and optional corner radius.
  2. Add extra rectangles or cutouts if your top is complex.
  3. Select coating mode and set thicknesses or total build.
  4. Pick edges to coat and set vertical edge height.
  5. Set waste, density, mix ratio, and any extra volume.
  6. Optionally add price, max batch size, and pot life.
  7. Press Calculate, review results, kits, cost, and batch plan.
  8. Export CSV/PDF and save a preset or share a link.
FAQs

A common flood coat target is about 1/8 inch (≈3 mm). Many systems recommend sealing first to trap bubbles, then applying one or two flood coats.

Edges usually build to similar thickness during flood coats. Use the edge height and edge selection to allocate resin for vertical faces.

15% is a practical starting point for mixing containers, squeegees, drips, and sanding losses. Increase for complex edges, heavy embeds, or aggressive leveling.

Choose a pricing basis per gallon or liter, enter the price, and the tool multiplies by your total requirement. Adjust waste to see budget impacts quickly.

Large mixes can overheat. Limiting per-batch volume and spacing mixes within pot life reduces exotherm risk and keeps the surface workable.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.