Took me 3 hours to assemble. Fort is extremely small along with the height is short. The age range is inaccurate. My 7 year old is like a giant on this. My one year old loves it. Its good if you have short children. If  your children are taller than 3 feet. Don’t waste your time. Its a good kit and easy to assemble if you have the proper power tools. Only good part of the whole thing is the smell of the cedar.