Wooluf1952 said:The metal ramps I have are about 30 years old, but if I was buying now, I'd get the Rhino ramps.
IMHO, they have more support and bracing. Plus they're lighter to move around and don't rust.
As far as sliding goes, for those with 4x4, use 2LO and it walks right up.
Also, my son has a set of Rhinos and likes them.
