What are the acceptable tolerances for dimensions and defects in hemlock lumber?

Two types of wood decay occur in living trees: white rots and brown rots. The more common fungal white rots in hemlock are caused by Ganoderma applanatus ( ... This hemlock grows over 300' tall from the Rockies to the Pacific coast. It has a straight grain, tightly spaced growth rings, somewhat course texture. Hemlock Wood Stair Parts ... Hemlock is a softwood with straight fine-textured grain that lacks pitch or resin. With little variance between its heartwood and ... Mar 11, 2025 ... Hemlock is a unique and durable wood that many people opt to use, especially for exterior projects such as fencing, paneling, framing and more. Western hemlock is a softwood native to North America. It produces a lustrous pale timber that is an attractive choice for carving. Western hemlock's working properties are good. The disparity between the soft earlywood and the hard latewood makes sanding create dips and uneven surfaces. ... wood products. There are 2 generations of hemlock woolly adelgids every year. In Nova Scotia, there are no native predators or diseases that can control ... It is the state tree of Pennsylvania. The lumber was widely used as structural framing beams and sawn boards for flooring, siding, and sheathing in many barns ... Feb 10, 2022 ... While some improvement in durability was measured, thermal modification was nowhere near as effective as treatment with copper azole or other ... Hemlock. The hemlock we supply is sourced from the very North USA or Southern Canada. Hemlock is only suitable for internal use, is totally free of knots and is ...