This rod makes a huge difference in terms of elbow room in my shower.
http://www.youtube.com/watch?v=j-gSHFeyUN4
$35.00 on amazon
https://www.amazon.com/Stromberg-Carlson-EXT-3542-Extend-A-Shower/dp/B0031XXW4O/ref=sr_1_5?ie=UTF8&qid=1528400464&sr=8-5&keywords=extend+a+shower+rod+for+rv
Did this fit without trimming it?
No, you have to cut the middle rod. They send directions how to measure it. I just used a hacksaw.