Took over 12 hours for two adults. Still not done some things. Some boards need to be sawed or sanded thinner to fit, some screws didn't secure so we need to purchase some larger ones. Slide does not fit in very well. I saw a review on Home Depot site that shows how someone cut the wood at the top of the slide so it tucks in. That's what we are about to do too so there is no hanging lip. All in all though, it's small, cute, functions well, kids love it.