Definitely 17" sink. It makes life easier, keeps the top drawers intact, and 12" of counter is nice on each side. Besides, it's a guest bath.

Agreed ^^^

I completely agree with hu120.
Definitely keep the drawers.

17", absolutely. It's plenty big. And that size will give you more counter top space for a tissue box, etc.

The actual sink basin length is 15 1/4", depth 13 3/8"... so the sink will be 15 1/4". The overall is from edge to edge of the outer part which is under-mounted. Do you think the 15 1/4" is still large enough?

Yes, it will be fine.

I checked a number of freestanding, single-bowl, 42" vanities with integrated sinks on build.com and decorplanet.com. The sink bowl widths ranged from 16" to 18" with the most common about 17". But wouldn't modifying the cabinet to accommodate the wider sink require not only removing the drawers but moving the four wood supports on either side of the sink opening outward, removing the drawer fronts from the drawers, and reattaching the drawer-front to the cabinet?

These are the specs to the sink that fits: Actual sink will be 15 1/4"

Overall Length: 17-1/8" (left to right of sink)

• Overall Width: 13-3/8" (front to back of sink)
• Overall Height: 7-3/16" (top to bottom of sink)
• Basin Depth: 5-1/8"
• Basin Length: 15-1/4"
• Basin Width: 11-1/4"
• Height to Overflow: 3-7/16"
• Number of Faucet Holes: 0

yes. They would remove the drawers completely and leave the facing plates as false drawers. The top horizontal wood the fabricator will remove anyway, the other wood support you see there is the track support of the drawers, all of that including the drawers would be removed.

My Kohler Caxton sinks are 17" x 13" inside bowl dimensions. Plenty big for a master bathroom.

This is going in a Powder Room.

You do know that any changes to the structure of the vanity totally voids any warranty and probably makes it less structurally sound, right?

A powder room ? IMO small is fine but if this is a guest bathroom next to a guest bedroom a totally different thing.

J Mig: "...probably makes it less structurally sound"

I'd probably move the horizontal supports outward to accommodate the wider sink but the fabricator understands the structure of the cabinet and whether the supports are really needed if the drawers are removed.

Chispa - what size is your MB vanity? I am overwhelmed right now with life - but I need to select sinks for my master bathroom ASAP (need to provide info to countertop fabricator). My fabricator has a few different options (don’t know brands) - which I was considering using one of them - just because it would be easier.

However, I’ve read quite a few posts where people have used Kohler Caxton (or have used Kohler Ladena - I think that’s the correct name).

Your home is beautiful (based upon what I’ve seen) - you clearly have a great eye for design.

If you wouldn’t mind sharing the overall size + a photo, I’d truly appreciate it!

Thanks,

Dani

OP - pretty walnut vanity - I would want to avoid modifications + all drawers to be functional, if possible.

@dani_m08, thanks! The vanity is 99.25" long and was custom made to fit in the space. The medicine cabinets are 24" x 48".

The sink in our 42” vanity in a master bath is 17”x12”x5.5”— it came with the counter so I didn’t give it much thought but two years in we like it and find it plenty big for anything we’ve needed to use it for. Especially in a powder room, it seems like it would work just fine. Definitely wouldn’t modify the vanity for something bigger.