
Installing plastic tile edge trim is a great way to finish off your tiling job and protect the edges of your tiles. Plastic tile edge trim is one of the four main types of tile edge trim, including stone, metal, and ceramic trims. It comes in a variety of colours and styles, allowing you to match it with the tiles and the overall style of your room. In this article, we will be discussing the tools required and the steps to follow for installing plastic tile edge trim.
| Characteristics | Values |
|---|---|
| Types of tile edge trim | Stone, plastic, metal, porcelain, or ceramic |
| Plastic tile edge trim characteristics | Prone to discolouration over time, less popular than metal trims |
| Installation process | Measure, cut, and install trim with the tile, apply thinset mortar, press trim into place, fill gaps with grout, seal grout |
| Tools | Miter saw, hacksaw, drill, vacuum, trowel, damp cloth, caulking, grout, sealer |
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What You'll Learn

Choosing the right trim
Secondly, consider the type of trim you require. There are four main types of tile edge trim: stone, porcelain or ceramic trim tiles, and plastic and metal trims. Metal tile edging and stone trims are the most popular. However, plastic tile trim is a versatile and affordable option that comes in a range of colours and styles to match your tiles. Plastic trim is also a good choice if you want an easier DIY job that is more budget-friendly and has more colour options available. On the other hand, metal trim is a good option to match your fixtures and for areas with heavy use.
Thirdly, it is important to select the right depth for your tile edge trim. A good rule of thumb is to always go slightly deeper. Most professionals recommend selecting a trim that is 1/16" to 1/8" deeper than the tile itself. This provides some wiggle room during installation. Additionally, if your tile is 10mm thick, your trim should also be at least 10mm thick. However, it is recommended to purchase a trim that is 1-2mm thicker to ensure that the trim and tile are flush.
Lastly, consider the finish of your trim. Finishes range from matte and gloss to brushed or textured, allowing you to match the trim with the overall look of your tiles. For example, a brushed metal trim might complement modern, sleek tiles, while a ceramic trim in a glossy finish could enhance a more traditional setting.
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Measuring and cutting
Before you start measuring and cutting your plastic tile edge trim, it's important to choose the right trim for your tiles. Plastic tile edging comes in a variety of colours and styles, so you should choose a trim that complements your tiles in both colour and style. For example, if you want a modern look, metal edging might be a better choice, whereas ceramic edging can match traditional tiles.
Once you've chosen your trim, it's time to start measuring. Measure the areas to be installed with tile trim and then measure again to be absolutely sure. It's crucial to get this right, especially once you start to cut. When measuring, remember to account for the use of adhesive when laying your tile. Choose a trim one size up from the depth of your tile for a smooth fit and clean finish. For example, if your tile is 10mm thick, opt for a 12.5mm trim.
When you're ready to cut, use a miter saw or hacksaw with a fine-tooth blade to make clean cuts, especially for corners. Trim should always be cut at 45-degree angles at wall edges and bases. To cut the trim, use a mitre box and secure the trim against one of the sides with clamps to hold it firmly in place. Using the channels in the box as a guide, carefully cut the trim with your hacksaw or a trim cutter. Repeat this process for the rest of your trim lengths.
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Installing trim with the tile
When installing plastic tile edging, it is best to set it in place while tiling, rather than after. First, apply thinset mortar to the surface, then press the edging into place alongside the first row of tiles. This ensures the trim is locked into place securely as the tiles set.
Before cutting the trim, align it with the tile edge and measure and draw the cutting lines. Use a mitre box and a hacksaw to cut the trim. If you are working with metal trim, smooth the cut edges with a file to avoid rough or jagged edges. For external corners, cut the plastic tile trim at a 45-degree angle using a mitre box to achieve precise corner cuts. Internal corner cuts should be made in opposite directions so that they fit together correctly when installed.
After cutting the trim to size, use fine-grit sandpaper to smooth the edges and remove any burrs or rough spots, ensuring a clean and polished finish. Then, spread tile adhesive on the back of the trim using a notched trowel. Make sure there is enough adhesive for a good bond. When applying the trim, ensure it is level and fits well with the tile. Fix it with a rubber mallet to ensure it sits flush and there are no gaps between the trim and the tile.
If you want to secure the trim further, you can use screws. Mark the holes on the concrete floor, then use a drill to make the holes in the tile edging. Insert the plastic dowels into the holes and gently hit them with a mallet. Finally, insert the screws using an electric screwdriver.
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Securing the trim
When securing plastic tile edge trim, it is important to ensure that the trim is firmly locked into place to prevent any damage to the edges of the tiles. Here are the steps to secure the trim:
- Measure the areas where the trim will be installed, including the base and corners. This step is crucial as it determines the amount of trim needed and ensures a precise fit. Mark the surfaces with chalk or a marker to indicate the placement of the trim.
- Apply a tile adhesive or bonding agent to the marked areas. Spread the adhesive evenly, covering the entire surface where the trim will be placed.
- Press the trim firmly into the adhesive. Use a notched trowel to ensure that the trim is securely embedded in the adhesive. Remove any excess adhesive that oozes out with a damp cloth.
- For added security, especially when installing trim on a floor, consider using screws to fasten the trim in place. Drill holes in the trim and the surface below, insert plastic dowels, and gently tap them with a mallet before screwing in place.
- Allow the adhesive to dry overnight. Refer to the manufacturer's instructions for the recommended drying time.
- Fill any gaps or spaces in the trim with grout and let it dry. Apply a sealer to the grout to enhance its durability and create a seamless finish.
By following these steps, you can securely install plastic tile edge trim, protecting the edges of your tiles and ensuring a neat and durable finish.
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Finishing touches
The finishing touches are important to ensure your tile edge trim looks neat and professional. Firstly, it is important to measure twice and cut once. Always measure your edging carefully before cutting to ensure a neat finish. Use a miter saw or hacksaw with a fine-tooth blade to make clean cuts, especially for corners. If you are working with metal trim, smooth the cut edges with a file to avoid rough or jagged edges. Trim should always be cut at a 45-degree angle at wall edges and bases.
If you are installing tile trim to floor tiles, ensure you place trim tiles on all edges or where the tile meets another flooring material. When installing edging, it is best to set it in place while you are tiling, rather than after. Apply your thinset mortar to the surface, then press the edging into place alongside the first row of tiles. This ensures the trim is locked into place securely as the tiles set.
If you are using metal edging, spread the adhesive first and then secure the trim. You can also secure the edging with screws. If you are using tile adhesive, coat the area that will hold the trim, then press the trim firmly into it. Leave the adhesive to dry overnight. Fill any gaps or spaces in the trim with grout and allow it to dry. Apply sealer on the surfaces of the grout to further enhance its effectiveness.
You can match the colour of your trim with the tile for a seamless look, or create a contrasting accent such as a metallic trim over a coloured ceramic tile.
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Frequently asked questions
The first step is to choose the right trim. Tile edging comes in a variety of materials, colours, styles, and finishes. Plastic tile edge trim tends to discolour over time, so you should consider this when choosing your trim.
The next step is to measure the areas to be installed with tile trim, and then measure again. You should also decide if you will be installing tile trim to just the base of the wall or the corners as well.
After measuring and marking the surfaces, coat the area with tile adhesive and press the trim firmly into it. Leave the adhesive to dry overnight. Fill the areas of the trim where there are spaces with grout and allow it to dry. Apply sealer on the surfaces of the grout to further enhance its effectiveness.











































