The rollers are actually made for a car. I just doubled up some hardwood sheeting to flaten the "v" notch where the tire sits so jack stands would work to keep the car elevated. The jack stands sit on the hardwood and place the weight bearing load on the roller's structural lip rather than the suspended portion of the plank. It seems to freak people out when they see it but it is really stable. I roll it all around a 3 car garage depending on what I'm doing. Been rolling it for a long time with no issues. It makes it so much easier to still be able to move it around in the garage.