- Also called plain lap. a joint, as between two pieces of metal or timber, in which the pieces overlap without any change in form.
- any of various joints between two members, as timbers, in which an end or section of one is partly cut away to be overlapped by an end or section of the other, often so that flush surfaces result.
Origin of lap joint
First recorded in 1815–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a joint made by placing one member over another and fastening them togetherAlso called: lapped joint