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
Laminated Veneer Lumber is much stronger than regular dimensional lumber and it has no grain. Regular dimensional lumber has natural grain running with the long way length of the lumber and is subject to cracking/splitting along this grain. 12' span is not what I call *short for a load bearing wall. First you need to temporarily brace both sides of the ceiling about 2' back from the existing wall.