§ 21.64. Group four woods.

 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.

Cross References

   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).

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