Can this be installed over vinyl plank?

You can install our Rubber Gym Tiles over certain types of vinyl. If the vinyl you are installing over is a luxury vinyl, then you can install it over that. Since these products have a wear layer on them, it protects the vinyl from reacting with the tiles. If the product is a natural vinyl product like some vinyl sheets, then we would recommend you not installing it over it as the rubber will stain the vinyl over time. If you don't mind that, then you can install our rubber flooring over any vinyl floor.