The following species meet the density requirements calling for at least 1/3 summerwood, as measured along an average radial line on one of the piece:
34 Pa. Code § 21.68
This section cited in 34 Pa. Code § 21.21 (relating to wood side rails).
The following species meet the density requirements calling for at least 1/3 summerwood, as measured along an average radial line on one of the piece:
34 Pa. Code § 21.68
This section cited in 34 Pa. Code § 21.21 (relating to wood side rails).