Dan.....We have the single recliner that I spin so the back rest is up against the wall when we drive and it doesn't move. My concern was more about it ruining the vinyl strip between the FWS and main floor. My recliner has the circular base that swivels. I turned it over and saw that they screw on three plastic covers around the circular base....I guess for stability. There are also about six plastic 1/2" feet inserted into the circular base. These are what concerned me. If you're not careful, those feet will leave dents in that vinyl divider.
So here's what I did. My first try, I removed those three plastic covers (phillips screw) and bought some 5/8" ID rubber heater hose (it takes 6'). I laid the hose down so that it was in it's natural loop (caused by being coiled). I took a razor knife and slit the entire piece along the top. By following it's natural coil, it will slip on better. I than put the rubber hose over the circular base. There are four support arms on the circular base that you have to notch a little piece of the rubber out.
The rubber worked great, but it was marring the vinyl strip with black marks.
So...…..I removed the rubber and went to Home Depot and bought 5/8" ID clear plastic hose. It's just soft enough to give it some bite. I did the same thing and cut the clear. I originally thought the six plastic feet were welded on tabs, until I looked closer and realized they were just plastic inserts. This time I removed all of them before installing the plastic tubing.
The tubing will definitely keep the chair from walking, but also makes it hard to move the chair around as it doesn't slide. After moving it a couple of times, I found that if you tilt it a little, you can roll it around on the ring, just like you would take a 50 gallon barrel and tilt it on it's edge and roll it.
If you don't need the chair to move or spin, the swivel ring is removable and there is framework at the four corners of the base. You can simply buy a threaded rubber foot and install at the four corners.
Lastly, "Stuart W" warned me early on that the feet on the bottom of the dinette chairs are hard plastic and will mar that vinyl strip on the FWS. I've never found chair feet that I really like until recently. While checking the selection at Home Depot, I found some 3/4" soft rubber feet. They're built like a grommet with a metal insert, so you can screw them on without distorting the rubber. They work great and dinette chairs don't move at all and don't mar the floor.