I have installed many light fixtures and this one took 2 hours, with two people, just to screw in the posts. You actually have to thread the holes with a separate tool. By the end, our hands were sore. The problem is that once we were finished, it was so heavy and difficult to install because screws were not lined up, we ended up unscrewing all the posts, and packing it up to send back for a return fee. Very disappointed!