About This Noise Construction with non-slip tape on the wooden slat for stability | Mattress not included Product dimensions u2013 74.5u201D L x 38u201D W x 12u201D H | Under bed u2013 8.5u201D | Distance between slats u2013 3.5u201D | Evenly distributed weight limit u2013 1,500 lbs. Mid-century modern style with 3.5-inch solid wooden fram