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half-lap joint

American  
[haf-lap, hahf-] / ˈhæfˌlæp, ˈhɑf- /

noun

  1. a joint between two timbers halved together so that a flush surface results.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.