A piano hinge is a long, continuous hinge that runs the entire length of a door or lid. It is commonly used in applications where a strong and stable connection is needed, such as in piano lids, hence the name. These hinges are typically made of metal and can support heavy weights, making them ideal for various furniture and cabinetry projects. Piano hinges are designed to provide smooth movement and durability. They come in various sizes and materials, allowing for customization based on specific needs. Their design helps distribute weight evenly, reducing wear and tear over time, which is essential for maintaining functionality in everyday use.