This standard BS EN 15146:2006 Solid softwood panelling and cladding. Machined profiles without tongue and groove is classified in these ICS categories:
79.080 Semi-manufactures of timber
This European Standard defines the characteristics of solid wood panelling and cladding without tongue and groove on edges, machined from the following most common European species of softwood: spruce/fir, pine, larch, European Douglas fir and maritime pine. Products are intended for interior or exterior use. Coatings and finishings are not dealt with in this European Standard. NOTE products sold in the European Economic Area will have to comply with EN 14915.