This SertiWOOD shiplap green-treated Timber is easy to handle and work. It is an imported timber suitable for cladding, walls, sheds, fencing, etc. Our Green Treated Timber is pressure-treated. As a result, it can resist and fight fungal decay. It is ideal for Trade or DIY Projects. Just like all timber focus products, this green-treated shiplap is either PEFC or FSC certified.