Not sure how to measure what size electric under tile heating mat you’ll need? In this article, we’ll give you some tips on how to calculate your room to ensure that you purchase the correct electric under tile heating kit size.

Tools You’ll Need to Measure what size Electric Under Tile Heating kit you’ll need.

  • Tape Measure

  • Calculator

  • Pen & Paper

Steps to take to Measure the Correct Size Under Tile Heating Kit

Step 1

The first step to measuring the correct size under tile heating kit you’ll need, is to measure the floor area of the whole room.

If the room is a square simply measure the width and length of the room.

  • In this example:  2.76m x 1.89m calculates to 5.22 square meters.

If your room is not a square then it’s best to break the space up into squares to make calculating the area of the room easier.

  • In this example we have 2 squares 1.07 x 1.29 = 1.38 & 3.53 x 2.46 = 8.68 so we have a total of 10.8 sqm

Step 2

The second step is to measure everything that is sitting on top of the slab.

In our example, we have the following

  • Toilet: 0.25
  • Vanity: 0.6
  • Shower: 1.8
  • Total of 2.65

Final Step

Total Room Area – Items Sitting on Slab = Electric Under Tile Heating Kit

So in this example

5.22 – 2.65 = 2.57

We always recommend rounding down.

In this example, a 2.5 sqm kit would suit.