from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A beam acting as a tie, as at the bottom of a pair of principal rafters, to prevent them from thrusting out the wall.
from the GNU version of the Collaborative International Dictionary of English
- n. A beam acting as a tie, as at the bottom of a pair of principal rafters, to prevent them from thrusting out the wall. See Illust. of Timbers, under roof.
from The Century Dictionary and Cyclopedia
- n. A horizontal timber connecting two principal rafters, for the purpose of preventing the walls from being pushed out by the thrust of the roof, or for tying together other parts of a structure. When placed above the bottom of the rafters it is called a collar-beam. See cut under curb-roof.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a horizontal beam used to prevent two other structural members from spreading apart or separating
tie + beam (Wiktionary)