FlyingPhotog wrote in post #9132118
The obvious answer Roger is Building Codes...
Unfortunately, there are no Photography Codes.
Not true (at least around here). If it's your own house, you do not need a license. You can build your own house from scratch as long as you stay withing the building codes.
Of course, learning the codes is not exactly the same as simply pounding a nail.
Just as learning to take good photographs is not exactly the same as simply pressing a shutter button.
In general, most people produce crap. Believe me, I know. I live in a house built by amateurs—cowboys, actually, and definitely not carpenters. No floor is level, no wall is plumb, no two doors are the same size, no two windows are the same size, and absolutely nothing is any standard size.