End-tag of pressure-treated lumber from CSI showing CCA Type-C treatment to .25 lbs./ft3 retention for above-ground use. “UltraWood™” also contains water repellants for added durability.
End-tag of pressure-treated lumber from CSI showing CCA Type-C treatment to .25 lbs./ft3 retention for above-ground use. “UltraWood™” also contains water repellants for added durability.