Most all the wood we get now after the housing boom is Canadian, but during that time of the real estate boom we subjected ourselves to alternatives. As far as I know all melamine has formaldehyde in it, some more than others. I think also the SA wood we were getting had exotic wood particles in it, which could have cause the rash also. I'll never know.

I will tell you one thing, I went from bottom heat to back heat and I like it much better. Just me experience though. Maybe John L can repost his open air rack he built with melamine and all-thread. He has no problem with sagging either. If I find it I will post it here.
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Jimmy Tintle

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