Pennsylvania Code (Last Updated: April 5, 2016) |
Title 34. LABOR AND INDUSTRY |
PART I. Department of Labor and Industry |
Chapter 21. Ladders |
Section 21.67. Durability
Latest version.
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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.
Notation
This section cited in 34 Pa. Code § 21.21 (relating to wood side rails).