Material: MDF Outer dimensions: 44.1' x 7.5' x 31.9' (W x D x H) Inner dimensions: 41.7' x 6.7' x 31.5' (W x D x H) With horizontal slats Assembly required: Yes California Proposition 65 Warning: This product can expose you to chemicals including wood dust, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.