A French cleat is a type of joinery used to connect two pieces of wood at a 90-degree angle. It is made up of two parts: a cleat and a mating piece. The cleat is a thin strip of wood that is attached to one of the pieces of wood. The mating piece is a thicker piece of wood that has a notch cut into it that matches the shape of the cleat. When the two pieces are joined together, the cleat fits into the notch and creates a strong and secure connection.
French cleats are often used in woodworking projects, such as building cabinets, shelves, and furniture. They are also used in industrial applications, such as building jigs and fixtures. French cleats are a versatile and strong joinery method that can be used in a variety of applications.
