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THE FEUTEX TOOLKIT

Mosaic Grout Void Volume

Estimate the joint volume between equal rectangular mosaic pieces, excluding the tile bodies.

Crafts workspace● Runs in your browser
01 Your input
02 Your result
View or copy raw result data
FormulaJoint area fraction = 1-tileW*tileH/((tileW+joint)*(tileH+joint)); Grout volume with allowance = area*depth*(1-tileW*tileH/((tileW+joint)*(tileH+joint)))*(1+waste/100)

Made for real tasks

  • Estimate the joint volume between equal rectangular mosaic pieces, excluding the tile bodies.
  • Compare an alternative set of measurements without uploading personal data.
Explore step-by-step workflows →

Worked example

Inputs

Finished mosaic area
1 m²
Tile width
20 mm
Tile height
20 mm
Joint width
2 mm
Filled joint depth
3 mm
Mixing loss allowance
15 %

Expected results

Joint area fraction
0.173553719 ratio
Grout volume with allowance
0.5987603306 L

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter finished mosaic area, tile width, tile height, joint width, filled joint depth, and mixing loss allowance in the displayed units.
  2. Calculate and use each labeled result for mosaic grout void volume. Compare the result with a measured sample before committing materials.

Try this example

{
  "area": 1,
  "tileW": 20,
  "tileH": 20,
  "joint": 2,
  "depth": 3,
  "waste": 15
}

Accuracy and scope

Large regular field approximation; edge joints, adhesive height and manufacturer coverage instructions can differ.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.