The edge of the countertop along the sink cutout is entirely exposed.
Can you undermount a top mount sink.
However the accessibility and visibility provide you better cleaning facility.
Undermount sinks mount to the bottom of the countertop and are held in place by heavy duty clips and caulk or a special adhesive.
Do what you need to support it so that the top of it is flush or slightly lower than your 3 4 roughtop.
Otherwise you ll possibly need to cut the bench top so as to fit both the sink and the strainer to ensure that there s a flush fit so as you can silicone the perimeter so as the water doesn t damage your new benchtop.
He wouldn t undermount it because he was certain the cut edges of the wood would rot.
The main requirement is adequate support.
There are however some disadvantages.
Most top mount sinks have a fairly thick rim more than that is obtrusive.
Undermounts look like a more premium offering.
There are a lot of people out there who love the look of their drop in sinks but also want to have an undermount sink design for their countertops.
Look at the bench top from side on to ensure that there s clearance.
Most any sink can be undermounted.
Our undermount stainless steel kitchen sinks do not have the installation holes already drilled and technically can be used in a top mount fashion.
We do not recommend this though because the flange or rim is flat which leaves a somewhat sharp edge and makes it hard to properly seal.
Though the seam that s formed by the countertop and the lip is small and visible it can still build up grease.
Usually undermount sinks are used for this purpose.
I usually rout the plywood 7 16 or so and add cleats on sides that will carry weight.
However a drop in sink can also be placed under the countertop to fit it like an undermount sink.
It s because all the areas you need to work of the drop in sink are visible and easily accessible.
An undermount sink does have a rim but the rim is not visible because it rests up against the bottom of the counter.
One of the many advantages of granite and quartz countertops in a kitchen is the unique option to undermount a stainless composite or cast iron sink.
Don t make such a project out of it.
Which will could likely be the case with an under mount as they re designed to mount below not above the bench top.
It looks fine not great but fine.