The following woods shall not be less than 5% larger than spruce in each cross section dimension:
Aspen | Populas tremuloides, grandidentata. |
Basswood | Tilia glabra, heterophylla. |
Buckeye | Aesculus octandra, glabra. |
Butternut | Juglans cinerea. |
Incense cedar | Libocedrus decurrens. |
Western Red cedar | Thuja plicata. |
Chestnut | Castanea dentata, pumila. |
Cottonwood | Populas deltoides, deltoides virginiana, heterophylla, balsamifera, sargentii. |
Black cottonwood | Populus trichocarpa, trichocarpa hastata, macdougalii, fremontii. |
Eastern hemlock | Tsuga canadensis. |
Lodgepole pine | Pinus contorta. |
Northern white pine | Pinus strobus. |
Ponderosa pine | Pinus pondersoa, Pinus jeffreyi, (Jeffrey Pine). |
Sugar pine | Pinus lambertiana. |
34 Pa. Code § 21.64
This section cited in 34 Pa. Code § 21.21 (relating to wood side rails); and 34 Pa. Code § 21.65 (relating to wood for ladder use).