Our rotocast are just the opposite seem really strong. In the middle of our pass thru I carry an unmounted 22" tire that is really heavy and its been there for 16000 miles and over 2 years and the floor hasn't moved a millimeter.
I really prefer it, and in some bays I made a tiny hole with a drill so I can just rinse them out and the water goes out the hole. Im sure I could go with a bigger hole and a plug but I just decided instead to go with one of my smallest drill bits. I would throw a full cup of water in there and then find out where all the water flows as it finds the low point in the bay, and then make my tiny hole in that low area.
Again getting back on topic, I think they are strong, easy to clean and really practical.
(CLICK PICTURE TO MAKE IT LARGER)
Hope this helps!
2019 Fleetwood Southwind 37 F
2018 Jeep Wrangler JL - towing
2020 Jeep Gladiator not towing
We RV'd ALL of the lower 48 states and into Canada