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I solved the ramp sliding problem I was having on my very smooth garage floor by putting tie down straps from Harbor Freight ratcheting tie downs through the top of each ramp's centering hole. I used the end of the strap that was just strap without the hook so its flat thin end could be pushed through the hole. This hole is located there in the front edge of the ramp to help you center the middle tire tread with the center of the ramp. Tying a large enough knot will keep the tie down strap from being able to pull back through that hole if tugged on. (tie two knots on top of each other to get the knot large enough not to pull back through the hole) That knot should be on the under side of the ramp.
Extend the other end of the strap with the hook on it away from the ramps toward where the back tires will be rolling over the strap. I placed a few strips of duct tape to keep the straps in place. When you roll up to the ramp the rear tires will be on top of the straps. Since the straps are also now attached to the front of the ramps the straps will keep the ramps from pushing forward when your front tires first make contact with the ramps.
I did not want to drill holes in my garage floor. and screw down 2x4"s to accomplish the same result. The industrial anti skid tape they put on stairs to keep you from slipping did not work either for me. The strap method works well. although not critical now that the straps are in place---try to make a smooth even attempt up and onto ramps to reduce the stress of putting your car on ramps.
As with everything your results may vary. And of course.... I accept NO liability for anything that somehow does not go well.... Harbor Freight straps taken from their ratcheting tie downs are utilized to keep these ramps from scooting forward when the tire first makes contact with the ramps on my slick, concrete floor.
Rhino Ramps slippage issue SOLVED!!!
