CLS C16 tanalised (pressure-treated) CLS timber, a high-quality, kiln-dried softwood engineered for reliable structural framing. This timber offers superior protection against rot, fungi, and insect attack, ensuring long-lasting durability for your projects. Smooth-planed with rounded edges, it provides easy handling and a clean finish, ideal for stud walls, partitions, and exterior builds such as shed or pergola framing.