Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia. counterpart. n. in the law of contracts, a written paper which is one of several documents which constitute a contract, such as a written offer and a written acceptance. Often a contract is in several counterparts which are the same but each paper is signed by a different party, particularly if they are in different localities.
dimension lumber. Joists, planks, rafters and other standard commodity lumber that usually range in width from 1 to 2 inches, in thickness from 2 to less than 5 inches, and in length from 3 to 12 feet. quality process
Lumber Dimensions - Actual vs Nominal On your next trip to Home Depot or Lowes, take along a tape measure and head over to the dimensional lumber aisles. Measure the actual width and thickness of a pine board (like a 2x4) and then look at the sign above the rack. Hmm. Something doesn't quite match up.