Internal Corner Trim

Sitting in the 90-degree corner of your room an internal corner trim has 2 slots either side for wall panels to slip into.

Fitting wall panels with awkward shaped walls can be troublesome. Using an internal corner trim gives tolerance to the cuts of your wall panel and helps provide a professional consistent finish while concealing all signs of silicone sealant.

They also help provide a watertight finish in wet wall areas by running a clear bead of silicone sealant into the join before sliding your panel into place.

Another advantage of using an internal corner trim is that it relinquishes the need to scribe each panel to fit perfectly into your corner. This allows you a bit more freedom when it comes to cutting and shaping your panel for internal corner use.

If you are doing a full room you will need one for each corner of the room. Thinking about a simple square room it has 4 corners. These are internal corners so you would need 4x internal corner trims. If your room is a different shape you may need to adjust accordingly.

For a bathroom wet wall only you will likely need 2x internal corner trims for each side of the bath.

For a shower if it is 2x walls only you will need 1x internal corner trim. If your shower has 3x walls you will need 2x internal corner trims.

Internal corner trims come in 3 different sizes – 10mm, 8mm and 5mm. This should match the depth of the wall panel you intend to fit onto your walls.

Ensure the correct sized trim is fitted to assure a sufficient waterproof seal.

The panel should fit tightly into the internal corner trim. Too small and the wall panel won’t fit into the trim. Too big and the wall panel will leave gaps. The correct size internal corner trim should be a snug fit.

PROPANEL® XL

Often referred to as shower wall panels, PROPANEL® XL 1m and 1.2m wide panels come in a height 2.4m. The matching trim length size for these panels is 2400mm with a 10mm depth.

PROPANEL® LUUX

The PROPANEL® LUUX is a 600mm wide panel which comes in a longer height option for those with higher rooms. With a height of 2.7m the matching trim length is 2700mm with a 10mm depth.

If you are doing a full room you will need one for each corner of the room. Thinking about a simple square room it has 4 corners. These are internal corners so you would need 4x internal corner trims. If your room is a different shape you may need to adjust accordingly.

For a bathroom wet wall only you will likely need 2x internal corner trims for each side of the bath.

For a shower if it is 2x walls only you will need 1x internal corner trim. If your shower has 3x walls you will need 2x internal corner trims.

Below is a quick description of the panels to help you choose the correct size:

10mm internal corner trim

Often referred to as shower wall panels the PROPANEL® XL and PROPANEL® LUUX panels are stronger 10mm thick panels. These require the more rigid 10mm internal corner trim for fitting.

8mm internal corner trim

Standard decorative cladding tends to come in 8mm thickness. To correctly fit you will need to match the panel with 8mm internal corner trim.

5mm internal corner trim

Thinner trade value cladding panels come in 5mm thickness. These are the thinnest and most cost-effective decorative panels available. They require smaller 5mm internal corner trims to fit correctly. Any other size will be too big making it loose for the fitting. This will compromise your finished waterproof seal resulting in a possible leakage.

To match the variation of wall panels available we have the following trims variations available with their SKU numbers for reference:

When requesting a specific trim over the phone quote the corresponding SKU code to the internal corner trim you require.

Yes, absolutely. In wet areas, you will still need to run a bead of clear silicone sealant into the internal corner trim BEFORE sliding the wall panel into the profile slot. Wipe away any excess immediately with silicone wipes.