I downloaded the instructions on the computer and put it together with the help of my daughter.  The only tool needed was a small saw to cut the windows out, before putting in the sliding access doors.  Since the composter consists of molded plastic panels, we wondered why they don't just mold 2 sides with the windows already cut out, instead of making the customer do it.  But it went together, and looks like it will do the job fine.  And our big dog won't be able to get into it and eat things, like he could with my old, flimsy compost bin.