RC gutter for beam need 12" x 12" to put in 3" pipe. That is the recommend for my contractor. Anything bigger will weaken the beam
Exposed gutter or concealed gutter?
Exposed gutter or concealed gutter?
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Jul 25 2011, 10:09 AM
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RC gutter for beam need 12" x 12" to put in 3" pipe. That is the recommend for my contractor. Anything bigger will weaken the beam
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