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 (American English; timber in Australian English, British English, Hiberno-English, and New Zealand English) is wood that has been processed into beams and planks, a stage in the process of wood production.Lumber may be supplied either rough-sawn, or surfaced on one or more of its faces.inished lumber is supplied in standard sizes, mostly for the construction industryâ primarily softwood, from coniferous species, including pine, fir and spruce (collectively spruce-pine-fir), cedar, and hemlock, but also some hardwood, for high-grade flooring.