Spinal Solution 8-Inch Full Size Assembled Foundation for Mattress, SensationCollection Wood : made out of strong traditional wood structure, made of light yet dense lumber which prevents the box to loosen up and crack and keeps the mattress in perfect shape : this box spring is good for all mattresses : Shipped fully assembled and ready to use, open the box and the mattress is ready to use : Very Compact resulting fast and easy shipment : the 4 inch box spring will give a perfect height for you mattress : Length-74 inches x Width-53 x Height-8 Weighs-20 lbs. Box Dimensions: 74x54x8