The kit comes in two boxes with each board marked for its place and use.  All the hardware we needed was included.  Nothing missing.  My two son-in-laws and I worked on it for about two days getting it put together, which made a really fun time for us.  I made a work table out of two saw horses and a sheet of plywood, and used a card table to lay out all the hardware.  I recommend this procedure!  It is really a two our three man project to put together, but fun.  My grandchildren love it!  Call it their castle!  They race out the backdoor to play on it every time they come over.