Siberian Larch Shiplap Cladding

We supply two profiles of shiplap cladding which are both suitable for horizontal fitting. These profiles 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

Sawfalling Grade is one of the knottier timbers that we supply, Siberian Larch is very popular with people who want the traditional timber look. Larch is full of character and the colour can vary between a pale-reddish brown a brick red which only adds to its allure.

We are also suply Siberian Larch in a higher grade called Unsorted. This grade is the highest grade we can supply the timber in and is almost clear of knots.

Due to Siberian Larch’s natural habitat it is more than capable of dealing with the worst the British climate has to throw at it. The timber's natural resistance to movement and rot make it ideal for use as external cladding on barn conversions, sheds and anything else you require.

We usually supply cladding in random lengths however if you do want exact lengths please ask us by calling 01889 597281 or talking to us on the online chat. If we confirm that we can provide you with the lengths you want please enter them into 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.