The following species have the most durable heartwood and it is recommended that they be used where resistance to decay is required:
34 Pa. Code § 21.67
This section cited in 34 Pa. Code § 21.21 (relating to wood side rails).
The following species have the most durable heartwood and it is recommended that they be used where resistance to decay is required:
34 Pa. Code § 21.67
This section cited in 34 Pa. Code § 21.21 (relating to wood side rails).