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my only question with it would be how thick to you need to make it to get a decent strength ratio...if it has to be 2 inches thick then I wouild say it would be too unweildy(Spelling?) to use...but like at 3/16 or 1/4 I would imagine it would be quite handy...
1/2" is what you need for a skid. That'll get you around 6,000 psi tensile strength, and a darn good impact resistant piece of plastic.

The only thing that suxs, is the stuff is very expensive; don't go this route if you're expecting to save $$... It costs about the same as 3/16" steel plate. But for ease of use (you can "weld" it with a torch, and can cut it with a circular saw), and light weight, it's worth it, IMO.