This bed frame was slightly difficult to assemble because the instructions were a little confusing. Took a little over 2 hours.  Please note only one person put together but it was suggested by the company that two people may be necessary. May need a good drill and a screwdriver and a lot of patience. Be careful assembling the lift up frame that uses hydraulic pressure springs. If not careful it can hit you directly in the face. It looks good seems sturdy but only time will tell if it can hold up to a 12 year old.