Plan on Stopping at the Home Improvement Store
Your review: We bought this cage after already expecting what it would take to install/assemble, as we have bought one similar to this once before. This means the quality is worth it, but I would recommend pre-assembled however possible.
This cage took a lot of time and effort to assemble. The inclded hardware was difficult to use, and if you dont align everything just right you will find yourself disassembling the product halfway through install just to reasemble in a different manner.
Some hardware was missing, or was not quite right. We had to stop at Lowe's to get the remaining hardware we required.