Lumber FAQs:

Q: Is lumber the raw material for furniture-making and other items requiring additional cutting and shaping?

A: Yes.

Q: Is lumber insufficient?

A: Yes, and also in areas where a heavy load is bearing from a floor, wall or roof above on a somewhat short span where dimensional lumber is impractical.

Q: Is lumber commonly sold in a "quarter" system when referring to thickness?

A: Yes, 4/4 refers to a 1-inch-thick board, 8/4 is a 2-inch-thick board, etc.

Q: Is lumber typically either kiln- or air-dried?

A: Yes.

Q: Is lumber readily available for end-uses where high strength is critical?

A: Yes, such as trusses rafters, laminating stock, I-beams and web joints.

Q: Is lumber heavily treated with salt?

A: Yes.

Q: Is lumber available in green?

A: Yes, and unfinished state, and for that kind of lumber, the nominal dimensions are the actual dimensions.

Q: Is lumber supplied in standard sizes?

A: Yes, and mostly for the construction industry—primarily softwood, from coniferous species, including pine, fir and spruce , cedar, and hemlock, but also some hardwood, for high-grade flooring.

Q: Is lumber mainly used for structural purposes but has many other uses as well?

A: Yes.

Q: Is lumber cut by ripsaw or resaw to create dimensions that are not usually processed by a primary sawmill?

A: Yes.

Q: Is lumber lumber that is cut to standardized width and depth?

A: Yes, and specified in inches.

Q: Is lumber blamed for deforestation?

A: Yes.

Q: Is lumber lumber created by a manufacturer and designed for a certain structural purpose?

A: Yes.

Q: Was lumber reduced from  1 5⁄8 inch to the current  1 1⁄2 inch?

A: Yes.

Q: Is lumber the result of secondary or tertiary processing/cutting of previously milled lumber?

A: Yes.

Q: Is lumber 6, 8, 10, 12, 14, 16, 18, 20, 22 and 24 feet?

A: Yes, For wall framing, "stud" or "precut" sizes are available, and are commonly used.

Q: Is lumber not yet milled?

A: Yes, and avoiding confusion with milled dimension lumber which is s measured as actual thickness after machining.

Q: Is lumber rarely used in relation to wood, and timber is almost universally used in its place?

A: Yes, but lumber has several other meanings in Britain, including unused or unwanted items.

Q: Is lumber compromised if it is altered by holes or notches anywhere within the span or at the ends?

A: Yes, but nails can be driven into it wherever necessary to anchor the beam or to add hangers for I-joists or dimensional lumber joists that terminate at an LVL beam.