Frame Material: Metal Transitional Look + All Metal Frame + Dark Bronze Finish Vertical Slat Open Frame + Decorative Joint Lift-up Twin Size Trundle Bed with Casters; Trundle Bed Size: 71.5" x 41" x 4 - 15.5"H Overall Size: 78.5" x 41.5" x 44"H; Weight Capacity: 300lbs/bed Foundation: Not Required; Mattress: Not Included; Assembly: Required;