Fridge bars are necessary. Perhaps not right now but as you go along and add and remove food stuf to the fridge you will most likely want a bar to hold things in place.
However, fridge bats will not hold everything. A whole watermelon is an example.
Trust me on that one.
Paul, Kathy, and Tux the Mini Schnauzer
2014 Tiffin Phaeton 42 LH, 2013 Honda CRV
"When the time comes to look back, make sure you'll like what you see"