C24 graded and treated softwood timber is a high-strength, structural timber that has been kiln-dried, strength-graded, and pressure-treated for enhanced durability and resistance to decay and insects. It's a premium grade of softwood, stronger than C16 and typically used in demanding construction applications where load-bearing capacity is crucial. Quality timber deserves proper care. That’s why we store the majority of our stock in a climate-controlled warehouse, protected from the sun, wind & rain. This means every length arrives in top condition, ready for you to put straight to work.