We bought this for the grand kids (ages 2 &3) and put it together in one solid day. It does take 10 plus hours with two people putting the play set together. However if you are able lay everything out (within each box) it may save some time as we spent a lot of time looking for every single item we needed. Instructions were very easy to read and as long as you follow them as indicated, the play set will go together nicely. All parts were there, with extra hardware if needed.