Construction Grade Fir Wood

You can see that this wood could be spruce pine or fir.

Construction grade fir wood.

2 and better prime doug fir lumber. Douglas fir ponderosa pine white fir and western red cedar are the most common single species sold as dimension lumber products. 2 and better prime doug fir lumber model 2x10 8 2 btr prime doug fir 14 77 piece 14 77 piece schedule delivery. Cedar both red and yellow most commonly.

There are limits on most of the defects with the exception of some occurring only on the surface. In north america construction grade lumber is usually stamped s p f. They tend to have a straighter grain making these woods suitable for use in construction framing lumber and building components such as windows and doors. The image to the left shows a typical grade stamp on the kind of framing lumber i buy for making fine furniture.

Structural lumber including dimension lumber is visually and or mechanically msr graded for its strength and physical working properties appearance is secondary unless specified. 3 lumber allows for more defects as long as they don t go all the way through the wood. Knots are allowed of any quality as long as they are well spaced. This means that each board could be some species of spruce pine or fir.

Construction grade lumber is used for light framing. Fir often called douglas fir. Knots must be sound firm encased and tight. Lumber of this grade has strength and stiffness values that make it.

Lumber of this grade is intended primarely for use in housing and light construction where it is exposed as paneling shelving and other uses where a knotty type of lumber with the finest appearance is required. All pictures are meant for a general grade description. Select grade douglas fir.