MDF (medium-density fiberboard) is an engineered wood product made from wood fibers, wax, and resin. It is created by breaking down hardwood or softwood into fibers, which are then combined and compressed under heat and pressure. This process results in a dense, smooth board that is easy to work with and can be cut, shaped, and painted. MDF is commonly used in furniture, cabinetry, and decorative moldings due to its versatility and affordability. Unlike solid wood, it does not have knots or grain patterns, making it ideal for applications where a smooth finish is desired.