CLS Treated Timber

CLS, or Canadian Lumber Standard, is a type of timber that is planed, treated and shaped to have four smooth and even sides. CLS-treated timber is typically made from kiln-dried softwood like pine, fir or spruce and is often used for building timber frames and internal and partition walls in residential and commercial buildings. Our CLS-treated timber comes in various lengths to suit a range of projects, and we also stock wood preservatives to keep your timber robust and protected against the elements. Shop our full range of CLS-treated timber, or find more timber and sheet materials at Beatson’s, including dressed timber and fencing.