§ 21.67. Durability.

 The following species have the most durable heartwood and it is recommended that they be used where resistance to decay is required:

   (1)  Black locust.

   (2)  Osage orange.

   (3)  Port Orford cedar.

   (4)  Alaska cedar.

   (5)  Red cypress.

   (6)  Redwood.

   (7)  Incense cedar.

   (8)  Western red cedar.

   (9)  Chestnut.

Cross References

   This section cited in 34 Pa. Code §  21.21 (relating to wood side rails).

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