The hardware came in individual bags with their corresponding numbers labeled.  The instructions say 2 adults to assemble, and I did it by myself and a couple of well placed chairs (to prop things on). The holes are a little work to line up, and probably would've been better with 2 people.  When it was all done, the double door latches are a little tight/ hard to slide when the spring latches are in use. Otherwise it seems sturdy enough for our boxer puppy.  She immediately went in to check out out.