Articles: What Shiplap Cladding is Available?

Shiplap Cladding is one of the more common types of cladding we supply and is available in two different profiles:

  • IWC6
  • IWC7

There are two main differences between the two:

  1. The face width of IWC6 is 135mm whereas and the face width of IWC7 is 128mm (they are both 145mm wide in total)
  2. Fitting Method
    1. When IWC6 boards are fitted they overlap each other. The lip at the bottom of the board goes over the top of the board below.
    2. IWC7, however, is fitted using a tongue and groove method where the groove at the bottom on the bottom edge of the board fits over the tongue of the pieces of wood below.

Both profiles can only be fitted horizontally as they are designed to allow water to flow off the curved channel which is present through the external face of the board (the flat side should face inwards).

Thanks to the water run off generated by the channel shiplap cladding is arguably the most complete form of cladding as it offers all of the advantages of T&G cladding (apart from the ability to be fixed vertically) and adds an additional layer of protection from the elements.



What Timber is Shiplap Cladding Available in?

We supply shiplap cladding in a variety of grades and species. European oak is the most popular species closely followed by Western Red Cedar. European Oak is available in both light character and prime grade so you get the choice over the knot content of your cladding.

Canadian Western Red Cedar is only available in clear and Better No.2 and has minimal knots, however, if you would like Cedar with more knots you could always take a look at the British Cedar. The British timber contains more knots and is a lighter red colour but is a good cost-effective alternative to the Canadian if you are going for a more traditional look.