The Stair Loft Lower Bed is designed to fit underneath the Loft and is equiped with locking casters ensuring this bed is easy to make and clean around. Features: Mattress ready with complete slat system (no foundation required); Locking casters allowing for ease of making the bed and cleaning the space; Material: Hardwood & Veneer; Loft bed is mattress ready and sits on locking casters for easy cleaning ; You can order this loft as a twin or full size bed; Cherry finish. Specifications: Overall Dimensions (Twin): 25.5″ H x 42.25″ W x 80″ D; Overall Weight (Twin): 56 lbs; Overall Dimensions (Full): 25.5″ H x 58.3″ W x 80″ D; Overall Weight (Full): 78 lbs.