An aluminum corner cleat is a type of metal bracket or piece used to reinforce the corners of structures, typically in woodworking or construction. It's often made from aluminum due to its lightweight yet sturdy nature. Corner cleats are used to join two pieces of material at a right angle, such as joining two wooden boards to create a box-like structure.
These cleats are commonly L-shaped, with one leg of the "L" being attached to the inside surface of one piece, and the other leg attached to the inside surface of the other piece. This creates a strong joint, adding stability and structural support to the corner. Aluminum corner cleats are favored for their corrosion resistance and versatility in various applications, from cabinets and furniture to framing and more.