British Larch Shiplap Cladding

Our British Larch Shiplap cladding comes in two profiles for you to choose from which are:

• IWC6 - 19mm x 145mm overall, with a 135mm face - For horizontal fitting
• IWC7 - 19mm x 145mm overall, with a 128mm face - For horizontal fitting

The main difference between the two profiles is the face width you get: IWC6 has a 135mm Face and IWC7 has a 128mm face. Both profiles are only suitable for horizontal fitting.

Although it is fresh sawn, British Larch wood cladding, like so many of our other homegrown timbers is stable enough to be machined into profile. The fresh sawn merchantable grade larch we supply is ideal for external use.

The timber also contains knots which adds character to the wood and makes it look like a more traditional material. We source British Larch from fully managed forests where their aim is not only supply great wood but also make the supply sustainable.

Usually the board lengths of our British Larch Shiplap Cladding are randomly 3m and longer when supplied. Where necessary we can try and provide exact lengths to your requirements, if you do have any special length requirements please call us on 01889 597281 or talk to us on the online chat to confirm we can supply them. If we can, all you need to do is enter your lengths in the “Special Instructions” box on the shopping basket page.

Treatments

Most people leave their timber to go the traditional silver-grey in the sun. We recommend talking to www.wood-finishes-direct.com if you would like to treat your timber. If you do decide to treat your timber, it needs to be treated all the way round including the ends to prevent moisture getting in at all.

Fitting Guidance

Our fitting guidelines are designed to give you a starting point on how to fit your shiplap cladding and we recommend that you consult an expert fitter to advise on your actual scenario.

Be sure to read our treatment guidance as treatment needs to be applied prior to fixing your cladding

Breathable Membrane

Consult a fitter to determine if your scenario would require the fitting of a breathable membrane between your wall and the cladding. This membrane stops rain getting to the wall, but allows moisture to escape, helping to prevent internal condensation and mould that can come with it.

Treated Softwood Battens

Treated softwood battens (available from our cladding accessories pages) are most commonly used to fix to the wall (or on top of the breathable membrane) to then fix your cladding to. Shiplap cladding is to be fixed horizontally only, so your battens need to be placed vertically, at around every 600mm (60cm).

Fixing the Cladding

** Whether you use nails or screws, it's important that they are stainless steel, or silicone bronze ARS, so that the natural tanins in the timber will not corrode them. Never use iron nails for fixing timber.

The timber is designed to only be fitted horizontally with the start of the running lip across the width of the timber at the top. To stop your wood from splitting it’s best to pre-drill any holes and then hold the boards with the head of the screw.

You can also use nails, preferably ring-shanked for extra grip, and again stainless steel so they don't corrode. For lower-density species like cedar, consider using nails with larger heads so the cladding doesn't pull through.

As already stated, these are just ideas to get you thinking about installation and you should consult a professional installer before fitting your cladding as every scenario is different.

All our claddings are provided untreated. Fresh sawn timber claddings are best left untreated and to go silver grey. There are a wide range of optional treatments available for different species of timber and we recommend talking to the excellent team at www.wood-finishes-direct.com, who know the most up-to-date information on all the newest treatment products.