Table Resin Calculator

Work out the resin for a table top or a river table pour: the area, the volume per coat, the number of coats and the total including a dam allowance.

Resin & Epoxy

A table is the pour where underestimating costs the most, because a short pour on a large surface is visible immediately and a second batch may not match. This calculator takes the table shape and size, the depth of each pour, the number of pours and an edge allowance for a dam, and returns the volume per layer and the total resin with waste. It is a planning and costing tool, and the depth per layer, the number of layers and the maximum pour depth all come from your product's technical data sheet.

At a glance

What you enter: Table shape, Table length, Table width, Table diameter, Depth of each pour, Number of pours or coats, Waste allowance, Dam or edge allowance, Resin density, Resin price per litre
What you get: Table area, Resin for one pour, Total resin required, Total resin required, Total weight of resin, Total weight of resin, Resin cost, Resin cost per square foot
Formula shown: Yes, every step, right below your results.
Cost and privacy: Free, no account needed, and nothing you type is stored.

See worked examples ↓ Read the FAQ ↓ Share this calculator ↓

Table shape

Table length cm

Rectangular tables only.

Table width cm

Rectangular tables only.

Table diameter cm

Circular tables only.

Depth of each pour mm

Check the maximum pour depth per layer on your product data sheet before committing to this figure.

Number of pours or coats

Waste allowance %

Ten to fifteen percent is normal on a large surface.

Dam or edge allowance %

Extra for the resin that goes against a dam, a river channel or a mould frame. Enter zero for an unbounded flood coat.

Resin density g/ml

About 1.05 to 1.2 grams per millilitre for most epoxy products.

Resin price per litre USD/L

Optional. Divide the kit price by the kit volume in litres. Leave at zero to skip the cost figures.

Reset

Results are estimates for general information only, always verify with a professional or official source before acting on them.

How to use the Table Resin Calculator

1 Enter Table shape
2 Enter Table length (cm), Rectangular tables only.
3 Enter Table width (cm), Rectangular tables only.
4 Enter Table diameter (cm), Circular tables only.
5 Enter Depth of each pour (mm), Check the maximum pour depth per layer on your product data sheet before committing to this figure.
6 Enter Number of pours or coats
7 Enter Waste allowance (%), Ten to fifteen percent is normal on a large surface.
8 Enter Dam or edge allowance (%), Extra for the resin that goes against a dam, a river channel or a mould frame. Enter zero for an unbounded flood coat.
9 Enter Resin density (g/ml), About 1.05 to 1.2 grams per millilitre for most epoxy products.
10 Enter Resin price per litre (USD/L), Optional. Divide the kit price by the kit volume in litres. Leave at zero to skip the cost figures.
11 Press Calculate. You get Table area, Resin for one pour, Total resin required, Total resin required, Total weight of resin, Total weight of resin, Resin cost, Resin cost per square foot, and every intermediate step stays visible under "How is this calculated?"
12 Change one number at a time to see what moves the result, that is usually the most useful thing a calculator can tell you.

Worked examples

Real numbers run through this calculator. Open any example to load it into the form above and change it.

200 by 90 cm table top, two pours

A rectangular table, 3 mm per pour, two pours, a 5 percent dam allowance and a 12 percent waste allowance.

You enter

Table shape: 1
Table length: 200 cm
Table width: 90 cm
Table diameter: 120 cm
Depth of each pour: 3 mm
Number of pours or coats: 2
Waste allowance: 12%
Dam or edge allowance: 5%
Resin density: 1.10 g/ml
Resin price per litre: $0.00

You get

Table area: 18,000.00 cm2
Resin for one pour: 5,400.00 ml
Total resin required: 12,700.80 ml
Total resin required: 12.70 L
Total weight of resin: 13,970.88 g
Total weight of resin: 13.97 kg
Resin cost: $0.00
Resin cost per square foot: $0.00

5,400 millilitres per pour, 10,800 for both, and about 12,700 millilitres once the allowances are added. That is about 12.7 litres and 14 kilograms of resin.

Open this example in the calculator →

120 cm round table, one flood coat

A round table with no dam, poured 2 mm deep in a single coat.

You enter

Table shape: 2
Table length: 200 cm
Table width: 90 cm
Table diameter: 120 cm
Depth of each pour: 2 mm
Number of pours or coats: 1
Waste allowance: 10%
Dam or edge allowance: 0%
Resin density: 1.10 g/ml
Resin price per litre: $0.00

You get

Table area: 11,309.73 cm2
Resin for one pour: 2,261.95 ml
Total resin required: 2,488.14 ml
Total resin required: 2.49 L
Total weight of resin: 2,736.96 g
Total weight of resin: 2.74 kg
Resin cost: $0.00
Resin cost per square foot: $0.00

About 11,310 square centimetres, so 2,262 millilitres for the coat and about 2,488 millilitres with the waste allowance, weighing about 2.7 kilograms.

Open this example in the calculator →

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Frequently asked questions

How much resin do I need for a table top?

Multiply the area by the depth of each pour and by the number of pours. A 200 by 90 cm table is 18,000 square centimetres, so a 3 mm pour takes 5,400 millilitres, or 5.4 litres. Two pours take 10.8 litres before the dam and waste allowances, which are worth another 15 to 20 percent. Weigh or measure your first coat on an offcut if you can, because the real figure depends on how much sinks into the surface.

How much resin does a river table need?

It depends on the width and depth of the channel rather than on the whole tabletop. Measure the channel as a rectangle, or as several rectangles if it curves, and use the same area times depth arithmetic. A channel 150 cm long, 15 cm wide and 4 cm deep holds 900 millilitres, and a deep pour in a river is usually built up in layers, so the total is a sum of pours rather than one.

How deep can I pour in one go?

That is set by the maximum pour depth per layer published on your product's technical data sheet, and it varies enormously between products. A casting resin formulated for deep pours allows far more than a thin laminating or coating resin. Exceeding the published limit can make the resin overheat as it cures, which can crack, discolour or distort the piece. Read the data sheet for your exact product and plan the number of pours from that figure, not from a general rule.

How much more resin should I mix than the table needs?

Ten to fifteen percent for waste, plus whatever the dam, frame or river channel takes. On a large table the surplus is cheap insurance: a top that is short is not repairable, while a little extra sets in the cup. Mix in batches the product data sheet is happy with rather than one enormous batch, and keep a note of the volumes in case you have to match a batch later.

Does the wood need sealing before the pour?

Bare wood absorbs resin, and a porous or oily species absorbs a great deal, so the first coat on an unsealed top can vanish into the surface and take the arithmetic with it. Sealing the wood first, with the product the manufacturer recommends, turns the surface into a predictable one and makes the coverage figures here far more reliable. This is a planning point rather than a procedure: follow the technical data sheet for whatever system you are using.

Terms used here

Short, plain-language definitions of the words this calculator uses.

Exothermic Releasing heat as it reacts. Curing epoxy resin is exothermic, and the heat builds faster in a larger volume because there is less surface area to dissipate it.This is why most...

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