American Standard Companies, Inc. Kunden-FAQ

If your 12" rough-in toilet from American Standard Companies is too far off the wall, it's likely due to the measurements taken from the wall to the toilet's flange (drainpipe). The standard distance is usually 12" (which seems to be the case with your toilet). However, certain factors such as baseboards, protruding moldings, or walls that aren't flush can distort this measurement, making it seem like the toilet is further from the wall than it actually is. It's also possible that there can be variations in the design or model of the toilet itself. Please consult a plumber or an expert to rectify this situation as necessary.