Project Overview

After installing a tile niche, it’s important to make sure the edges and the corners have a professional finish, rather than leaving an exposed tile edge, which can be easily damaged. A tile trim is easy to install and not only reduces how long it will take to lay your tiles, it also protects the edges of your niche and completes the look.

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man smoothing a metal edge
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How to smooth metal edges

When you cut metal with a hacksaw or an angle grinder, you are sometimes left with burrs on the face of the cut. A quick way to clean these up is to rub the metal along a hard, rough surface like a brick or a concrete slab. A metal file will do a better job, but this works well.

Step by Step Instructions

1 Check the thickness of your tiles
2 Measure the length and height of the niche
3 Cut the tile trim
4 Install the trim
  • Step 1. Check the thickness of your tiles

    Once you’ve installed the tile niche, the next step is to install the tile trim around the edge. It’s important to select the tile trim according to the thickness of your tiles. When you go to buy your trim, it’s a good idea to take a piece of tile with you to get the right size.

  • Step 2. Measure the length and height of the niche

    Use your tape measure to measure the length and height of the tile niche. Take into account that you will be cutting the tile trim at 45-degree angles. Use the marker or pencil to mark these measurements on the tile trim.

  • Step 3. Cut the tile trim

    Cutting the tile trim is like cutting a picture frame, all of the joins have to be at 45-degree angles. Double check your measurements by placing the trim across the length and height of the niche to make sure they’re correct. Place the trim in the mitre box and cut them with a hacksaw. After cutting the trim, use a file to create a nice smooth edge. Repeat this process to cut the three other pieces of trim, making sure that the 45-degree angles at each end of the trim are opposing.

  • Step 4. Install the trim

    Put the bottom piece of the tile trim into place. Use the painters tape to secure it and make sure it’s level. Repeat this process for the trim on the sides and top. Don’t nail in the trim, it could compromise the waterproof membrane. Now you’ve installed the trim, you’re ready to start tiling the niche.

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Health & Safety

Please make sure you use all equipment appropriately and safely when following the advice in these D.I.Y. videos. You need to be familiar with how to use equipment safely and follow the instructions that came with the equipment. If you are unsure, you may feel it is safest to consult an expert, such as the manufacturer or an expert Bunnings Team Member.

Grave health hazards are linked to asbestos, which may be in homes built up to 1990. Health hazards may result from exposure to lead-based paints in older materials and copper chromium arsenic (CCA) treated timber. For information on the dangers of asbestos, lead-based paint and CCA treated timber and tips for dealing with these materials contact your local council's Environmental Health Officer or visit our Health & Safety page. You can also use a simple test kit from Bunnings to indicate the presence of lead-based paint Test.
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