I went with vinyl flooring under my chair as well. Not as fancy as mounting it on mdf - I just taped it together in two layers. Been working well for the last few years. The sides get a little thrashed but thats all good, they are sacrificial. I tried all sorts of plastic mats prior and just didnt find them that great - I still use one at my spare desk but that really doesnt get anywhere near the use of my main one.



