Mitre Joint

A joint formed by cutting two pieces of wood at matching angles — typically 45 degrees — so they meet at a corner to form a 90-degree angle with no visible end grain. Mitre joints are used extensively in cabinet crown molding, picture-frame-style door construction, and trim work. While aesthetically clean, mitres have limited structural strength on their own and are typically reinforced with glue, splines, or biscuits.