I ran into an issue a couple months ago while going through some casework submittals for a project. This particular job has had a lot of field changes for a variety of reasons but the end result is that there have been a number of issues that have required extra attention. While reviewing the submittals the PM for the contractor mentioned that there might be a clearance issue with some under-mount lavatories in the patient rooms. No problem – I can cut a section, drop in a clearance check jig, and everything will be fine. So I do just that, send the section to the PM and think everything is OK.
Well… it turns out that the family that I got from the manufacturer had omitted the overflow drain located at the front of the sink (it was indicated in the cut sheets …) This is not a big piece, it adds about an inch to the overall dimension to the sink, but due to some issues in the field (the counter tops are a little lower than typically specified) that extra inch…