Crafted with a whimsical playhouse design, this bunk bed comes with slide and storage steps. Constructed from selected solid pine wood and MDF and iron alloy bolts which keeps the whole bed sturdy and wobble free. Features guard rails on the top bunk for added security and durability. No box spring required. 4-6" mattress thickness recommended for upper bed and 8" for bottom bed. Dimensions: 77.4"L x 41.6"W x 84.4"H; Upper bed supports up to 250 LBS, bottom bed supports up to 300 LBS. If there is any problem, please visit to our website: Merax.com