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Originally Posted by Brian Carlton
And, you've clearly ignored the very good analogy of an architect who would laugh in the face of someone who demanded hard evidence of the fact that a 2" x 4" won't work as a proper header above an 8' garage door.
You do know that this header would be inappropriate.......don't you?? Maybe I'm making some cavalier assumptions regarding your knowledge of building construction??
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My anecdotal architectural contribution here is intended to cast a critical light on the legacies of that profession...
In old England, the Monarchy had identified two lengths of wood for the stoves, and of course the gentry had the longer. The peasants stacked their wood up against the inside walls of their "houses". Thus the basis for the 16 inch pitch in 2 x 4 construction, and 24 inch for 2 x 6.
Now, perhaps the modern architect has a mathematical engineering model which shows the maximum safe pitch of the studs in the wall, eight foot garage door or not.