Skip to main content
Calcimator

River Table Calculator

Calculate the total epoxy needed for a river table based on table length, river width, thickness, and average void depth.

Inputs

in
in
in
%

Results

Epoxy Needed (with 15% overage)

6.03 gal

≈ 6 milk jugs

Pours Required (2" max/pour)

1

Epoxy Needed770.64 oz
Exact Volume5.24 gal
Est. Cost (low)$301.50
Est. Cost (high)$482.40
Effective Volume1,209.6 cu in
How to Use This Calculator
  1. Enter the table length in inches.
  2. Enter the average river channel width in inches — measure across the void between the two wood slabs.
  3. Enter the overall table thickness in inches.
  4. Enter the average void depth as a percentage of the table thickness (typically 80–100% for a through-pour).
  5. Read the epoxy needed in gallons and ounces with 15% overage to account for uneven voids and edge sealing.
  6. Check the exothermic heat calculator if your pour volume is large to confirm safe pour depths and temperatures.

How the result changes with Table Length

Table LengthEpoxy Needed (with 15% overage)Pours Required (2" max/pour)
252.09 gal1
584.85 gal1
988.2 gal1
13110.96 gal1

What each input means

Table Length
Total length of the table in inches. A standard dining table is 60-84 inches; a coffee table 36-54 inches.
River Width (avg)
Average width of the river channel between the two wood slabs. Measure at several points and use the average.
Table Thickness
Total thickness of the finished table. Most river tables are 1.5-3 inches thick.
Void Depth (avg %)
Average depth of the river channel as a percentage of full thickness. Live edges typically fill 60-80% of the channel depth.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Table Length = 72, River Width (avg) = 12, Table Thickness = 2, Void Depth (avg %) = 70 = 4 input(s) provided
  2. Calculate Epoxy Needed
    6.03 = 6.03
  3. Calculate Pours Required (2
    Pours Required (2
    1 = 1
  4. Calculate Epoxy Needed
    770.64 = 770.64
  5. Calculate Exact Volume
    5.24 = 5.24

Engine last updated . Checked against 1 independently-derived test — how we verify calculators.

Related Calculators

The questions that sit next to this one — chosen by subject, including calculators filed under a different category.

Resin & Epoxy

Epoxy Volume Calculator

Calculate the exact amount of resin and hardener needed for a rectangular mold based on dimensions and mix ratio.

Resin & Epoxy

Resin Curing Time Calculator

Estimate pot life, demold time, and full cure time for epoxy resin based on mass, ambient temperature, and resin type.

Resin & Epoxy

Exothermic Heat Calculator

Estimate the peak temperature and heat risk when pouring resin, based on volume, resin type, and ambient conditions.

Earth Science

River Meandering Calculator

Migration rate from channel width and discharge.

More in Crafts, Hobbies & Games.