Joint Types – How The Panels Slot Together

All of our panels have a tongue and groove system running the length of the panel to enable them to be slotted together to give you a waterproof surface.There are two joint types that have a slightly different appearance: flush and V-groove.

Both use a tongue and groove to join together – the difference is in how the finished joint looks. They are both waterproof, bath are suitable for use in showers and both make fitting simplicity itself.

A large proportion of our customers prefer the flush version in showers and above baths, not because it is more waterproof (it isn’t) but simply because it is easier to clean.*

Flush Effect Panel Joint

This joint is used by several of our panels including:

  • Vicenza Sparkle
  • Vicenza Marble
  • Neptune
  • Vox


This is the most straight forward joint type – click the diagram above to see the joint in detail. Although the joint line is quite fine on flush fitting panels it is visible, in much the same way that the join in wallpaper is visible, as shown in this photo.

Certain panels, such as Modern Decor or Carrara, help to hide the joint line as the pattern includes vertical grout lines. When customers are selecting bathroom wall panels, flush jointed panelling is usually preferred as it is seen as the easiest to wipe over, although all of our range can be used in these situations – it’s just a matter of personal taste.

V-Groove Effect Panel Joint

This joint is used by several of our panels:

  • Vicenza White Chrome
  • Vicenza Whiteline
  • Decos Belmont

This type of panel makes a feature of the joint – which is ideal if you want to avoid a featureless “slab” look. The groove is quite restrained on the Belmont range but a little more pronounced on the Vicenza range.

Even though this joint looks more “open” than a flush joint they are still waterproof* and are suitable for use in shower and cubicles. But their most common use is as ceiling panels.


* we recommend a thin bead of silicone is applied inside the groove when the panels are being installed as the joints are waterproof to static water and some high pressure water can force its way through joints.