Matching Sink to Drain size?

[MsPerkyville]

Hi, forgive this rather simple question. I really admire this site and have referenced it for many, many years.
I have picked out new faucet with associated matching pop up drain for a bathroom remodel. Now I have to pick out the sink. The pop up drain is 1-1/4. Do I need to limit my sink choices to ones that have a waste hole sized 1-1/4 so that there’s not a problem in fit? I just can’t seem to find the answer anywhere else. TIA!

 

[Reach4]

That is super common. No need to worry about that. Bathroom sinks (lavatories) with 1.5 inch drains are the exception.

The change from 1.25 to 1.5 can happen a the input to the 1.5 inch trap, or it can be at a 1.5 inch trap adapter at the wall with the right washer to adapt to 1.25, or you could even have a 1.25 inch trap adapter fitting at the wall.

If you want to think ahead, be concerned that a bathroom sink cabinet with drawers may complicate things a lot, and one that hangs on the wall may complicate things. If you really want to create misery, go for a pedestal sink.

 

[Sponsor]

 

[MsPerkyville]

That is super common. No need to worry about that. Bathroom sinks (lavatories) with 1.5 inch drains are the exception.

The change from 1.25 to 1.5 can happen a the input to the 1.5 inch trap, or it can be at a 1.25 trap adapter fitting at the wall.

If you want to think ahead, be concerned that a bathroom sink cabinet with drawers may complicate things a lot, and one that hangs on the wall may complicate things. If you really want to create misery, go for a pedestal sink.

Yep. Got the cabinet with drawers already, which is why I'm so paranoid about the sink selection. So when the sink specs say " Fits Drain Hole Size: 1-3/4", I can still use a pop-up drain sized 1-1/4 and not have difficulty in the flange placement? The hole won't be too big for the flange/gasket?