I am remodeling my kitchen and opened up the wall behind the sink. I knew there would be surprises but when I saw that they literally cut two 2x4s completely in half to make a path for the vent pipe, I did a double take.
Question: is there special bracing for cut-outs in 2x4s to help hold the structural strength of the wall? This is a load bearing wall.
(I will be replacing the studs)This gets even more interesting because the house was built in 1925 and the studs are actually a real 2x4".
2nd half of question: The vent pipe is some old 2" galvanized. I cut it off where it went vertical. Is there an adapter for plastic pipe to the galvanized pipe?
Thankyou.

 

Use a fernco coupling to make the transition between the types of pipe.

 

The only thing I find suprising is that they used a 2" drain for the kitchen sink -- a 1-1/2" would have been plenty!! Are you measuring I. D., or O. D.??

Like Ron said, a Fernco coupling will handle the transition between the pipes just fine. What he didn't mention is that strips of 1/2" plywood will take care of the differences in the old 2X4's (aa full 2" by a full 4") and the new ones -- actually 1-1/2" by 3-1/2"

 

Did they cut studs for a horizontal run or was it just some blocking for a vertical run. Cutting studs is a problem, cutting blocking is no big thing.

 

Lefty means 1-1/2" for the vent, 2" for the drain is code.