Beats me. He apparently didn't even provide the correct product name as
I couldn't find it with a search. If I was going to install a product,
I would know who the manufacturer was.
And what is it to you anyway?
I made the mistake its a super "I" joist and I did the search myself
as well. It seems Matt is correct, it depends on the depth of the
joist. I have used them in the past and think they are very good. I
was checking for a friend of mine who is planning his cost for
building a new home, just hope that they are allowed in California
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