Don't make the same mistake I did! LOL Check out this link
http://www.yorkietalk.com/forums/showthread.php?t=83915
I'm sure the foam will be great! My "ramp" is a little too short for the bed! Gizmo looked like he was mountain climbing, but the board with carpet works well as a ramp for the couch. The only thing...

..use different fabric from your carpet! I can't tell you how many times I've stumbled on it since it's camoflaged so well.
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The fullness of our heart is expressed in our eyes, in our touch, in what we write, in what we say, in the way we walk, the way we receive, the way we need. -Mother Teresa (
RIP Gizmo 3/9/07-8/18/12)