SPF (Spruce-Pine-Fir) is a species group consisted of four species: White Spruce (Picea glauca), Engelmann Spruce (Pice aengelmannii), Lodgepole Pine (Pinus contorta), and Alpine Fir (Abies lasiocarpa). These species share similar characteristics, and are often traded jointly in market, hence the collective term SPF. The average height for SPF species group is 26m, with a maximal diameter of 80cm. SPF is characteristic for its resistance to coldness, slow growth rate, small knots, and lightness in material. SPF produces lumber superior in straightness, smoothness, and glowing finish, ranging from white to light yellow in color. After proper drying, SPF can be processed into a wide variety of products, especially materials for slotting and drilling. The great consistency of SPF also makes it suitable for nailing and paint coating. As such, the usage of SPF lumber materials is very prominent and flexible, with particular emphasis on architecture and structural engineering due to its high durability. As one of the major species of North American lumber exports, the color and grain characteristics and flexibility of SPF lumber are also reflected in other industrial uses.
SPF Grades & Usage
|J-Grade||Suitable for uses that require high durability, high hardness, and where appearance is a priority|
|Prime||Suitable for uses that require high durability, high hardness, and where appearance is a priority|
|#2&Better||Mainly for purposes where durability and hardness are important, such as common architecture and structural uses|
|#3||Suitable for uses that do not emphasize durability or hardness|
|Economy||Mainly for purposes that do not emphasize durability or appearance, such as temporary structures and transportation platforms|
Coast Fraser provide a reliable and abundant supply of certified Hemlock Fir materials from Weyerhaeuser and many other major sawmills in North America, with lumbers ranging from #1 to Economy grade and spanning in dimension from 2x4 to 2x12.