Question

Dimensional lumber is lumber that is cut to standardized width and depth, specified in inches.

(a) True

(b) False

This question was posed to me in semester exam.

This key question is from Classification of Timber, Carpenter’s Work topic in section Rules and Methods of Measurement of Civil Engineering Drawing

Answer 1

Correct answer is (a) True

For explanation I would say: Carpenters extensively use dimensional lumber in framing wooden buildings. Common sizes include 2×4 (pictured) (also two-by-four and other variants, such as four-by-two in Australia, New Zealand, and the UK), 2×6, and 4×4. The length of a board is usually specified separately from the width and depth. It is thus possible to find 2×4s that are four, eight, and twelve feet in length.