The clearance at the top tank level indicates its not enough for 11 rough in but enough for 11 25 rough in and larger.
Toilet rough in size 11.
There are however other rough in sizes.
I d say 80 of toilets have a 12 rough in so don t be surprised if you do as well.
The 12 inch rough in is by far the most common in the us.
The most common distance is 12 inches so most toilets have a 12 inch rough what is the toilet rough in standard measurement or size.
Remember the center of the toilet flange to the wall should be 12 inches.
Do not measure to the baseboard molding but to the wall.
Toilets are typically offered in either 10 inch 12 inch or 14 inch rough ins.
A toilet s rough in refers to the measurement dimension from the finished wall to the center of mounting holes on the floor flange.
10 and 14 are also possible and you ll have a smaller selection of toilets that fit those sizes.
I would suggest that collette please measure the toilet rough in again based on the drain center.
If you measure a few times and come up with 10 or 14 inches you will need to replace with the proper size toilet.
This is because the tank usually extends the farthest back of any part of the toilet and it is nowhere near the baseboard.
If your measurement comes out to 11 5 or 12 5 then don t worry it s likely a 12 rough in.
Follow these step by step instructions for measuring the toilet rough in.
Never measure from the molding baseboard to the flange only against the wall.