C16 and C24 carcassing timber, also known as Timber Joists, are used in structural applications like flooring, roofing, and timber framing. C16 offers good load-bearing capacity, while C24 provides superior strength for demanding projects due to it's reduced knot content. Kiln-dried for stability, both grades are regularised with rounded corners, ensuring consistent dimensions and comfortable handling. This makes them ideal for reliable and durable construction.