Originally Posted by Dwight Frye

Go to Walmart and buy the least expensive rubber backed bathmat that you can find that is at least 36" long, 48" is better. Slit it lengthwise. Put 1 section under each Rhino ramp, rubber side down, carpet side up. Wedge the edges of the ramps up tight against each tire before you start to drive up on them.
I use them only for oil changes, but the ramps work fine and the bathmat keeps them from slipping on a slick concrete floor.