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Grout Calculation Guide for Tilers

This document provides instructions for calculating how much grout is needed for a tiling project. It outlines the measurements needed, including the total area being tiled, tile size, thickness, and spacer size. A 6-step calculation is then described that multiplies these measurements together with a coverage ratio to determine the amount of grout needed per square meter. This amount is then multiplied by the total area to calculate the total grout required, with a 10% addition recommended for wastage. An example calculation is also shown.

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96 views2 pages

Grout Calculation Guide for Tilers

This document provides instructions for calculating how much grout is needed for a tiling project. It outlines the measurements needed, including the total area being tiled, tile size, thickness, and spacer size. A 6-step calculation is then described that multiplies these measurements together with a coverage ratio to determine the amount of grout needed per square meter. This amount is then multiplied by the total area to calculate the total grout required, with a 10% addition recommended for wastage. An example calculation is also shown.

Uploaded by

R S
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Measuring Grout

How much grout do I need?

At this stage, you should already know the following measurements,


which will help you calculate how much grout you need:

 Total area being tiled (in metres squared)


 Tile size (height and width in mm)

 Tile depth (thickness in mm)

 Size of spacers between your tiles (the gap between each tile
in mm)
You’ll find all the tile measurements you need in the Dimensions
and Specifications section on each tile product page (see below for
example).
To work out how much grout you’ll need, follow this easy 6-step
calculation:

 Step 1: Tile width (mm) + tile height (mm) = A


 Step 2: Size of spacers (mm) x tile thickness (mm) = B

 Step 3: A x B x 1.2 (this number is the coverage ratio of all


UltraTile grouts) = C
 Step 4: Tile width (mm) x tile height (mm) = D

 Step 5: C / D = E (Amount of grout you’ll need in kg per metre


squared)
 Step 6: E x Total area being tiled (metres squared) = Total
grout required (kg)
You should always add around 10% to the total grout figure for any
spillages or wastage. Ready to buy your grout? Browse our full
range of tiling grouts and adhesives.

Example calculation

To demonstrate how this works, here’s an example. Let’s assume


we’re tiling a wall measuring 4 metres square, using our
popular Metro subway white bevelled gloss wall tiles. We have the
following measurements:

 Total area being tiled: 4 metres squared


 Tile size: Width: 100mm. Height: 200mm

 Tile thickness: 7mm

 Size of spacers: 2mm

Calculation
 Step 1: 100mm + 200mm = 300mm

 Step 2: 7mm x 2mm = 14mm

 Step 3: 300mm x 14mm x 1.2 = 5,040

 Step 4: 100mm x 200mm = 20,000mm

 Step 6: 5,040 / 20,000 = 0.252 kg grout per metre squared

 Step 7: 0.252 x 4 = 1.008 kg of grout

In this instance, one 3kg bag of UltraTile grout will be enough.

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