This one seems nice. Not as pricey as some, but still up there.http://www.sears.com/sr/product/deta...id=00965327000
Here is a nice selection.
http://www.forbesindustries.com/home/1frame.htm
These are plastic (where rusting would be a problem).
http://www.forbesindustries.com/products/pframe.htm
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