As long as you KNOW you are dealing with an interior wall that has some empty space inside of it, like for wiring and such, mounting an extra towel rack is just a few minutes work.
I put 2 more towel racks in the "toilet room" of our Rockwood 8280SS.
I bought 2 lightweight, inexpensive towel rods/racks from Home Depot. I had to cut the towel rod down a few inches using a hacksaw to get maximum 'rod' in my available space. I used the plastic screw anchors that came with the racks.
The instructions stated what size drill bit to use to make the anchor holes. I bought a bit that size while at Home Depot to make dad-gum sure I had the right size.
As long as you follow the instructions, take your time, and put the right sized hole in the right place you'll be fine. My 2 towel rod installation took less than 30 minutes, I needed a hacksaw (my rods were 4" too long) a cordless drill and a screwdriver.
You can do this.
This is the only pic I have. Sorry. This was, in our RV, the only place to put extra towel racks. One above the toilet and one facing. The fan will help dry damp towels. Holds 4 BIG towels.
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2008 (or is it 2009?) Rockwood 8280SS - 2007 F-150
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