Spruce Pine Fir Lumber, abbreviated as SPF lumber, is dimension lumber milled from mixed spruce, pine and fir softwood logs. Raw logs are cut into standard sizes, kiln-dried, planed and sorted to form uniform solid wood planks, without chemical modification.
Light pale yellow-white wood tone, straight and fine grain structure. Low density, light weight, easy to cut, nail and machine process. After kiln drying, the lumber features stable moisture content to reduce warping, shrinkage and cracking. Few large knots on graded boards.
Soft texture with moderate structural strength. Good thermal insulation performance, natural uniform color without heavy resin bleed. Consistent dimensional stability after drying treatment.
Mainly used for residential building wall framing, roof beams and floor joists. Also applicable to wooden crate packaging, pallet making, furniture auxiliary materials and general carpentry processing.
