The desks are usually mass-produced in steel or wood and sold on the consumer market.[1] There is a wide variety of plans available for woodworking enthusiasts to build their own versions. Modern mass-produced student desks are often made with laminate table tops and molded plastic seats in a combined single unit, with storage found under the desktop or on a wire shelf beneath the seat.[11] There are many novel forms of student desks made to maximize the relatively restricted area available in a child's room. One of the most common is the bunk-bed desk, also called the "loft bed".[14]