DIYdude
Member
Is there a minimum clearance requirement between a joist and a toilet drain opening? I read something about, I think, 3" from the center of the drain to a joist. I'd like to sister the bad joist in the attached pic. If my calculations are correct, doing this will leave me about 1/2" from the edge of a properly-centered 5" drain hole in the subfloor to the new sister.
Thanks.
Thanks.