Furniture can be made from various materials like wood, metal, plastics, and glass. Wood is still the most commonly used material and comes in varieties like solid wood, plywood, veneers, hardboard and particle board. Metals used include steel, aluminum, copper, brass and bronze. Plastics are also widely used in the form of laminates, fibers, and molded parts. Glass is used as hardened or softened panels and in acrylic forms. Proper selection of materials allows furniture to be functional, durable and aesthetically pleasing.