First off this rack is amazing! Just wish I looked into dimensions a little better.. I bought the 21” rack with the Titian adjustable bench and my only complaint is that my bench’s base is to long to do any type of work out ( BB military press for example ) inside / with my back to the rack. So I would buy the longer version for that reason. I will be looking into purchasing the longer arms. I put the rack up all by myself so assembly isn’t an issue if you’re 1/2 way inclined with tools and strength.Make sure to use little spacers underneath the foot base to allow room to fold in and out. 10/10 rack is everything I wanted in the garage!