Kitchen Remodeling Tips Selecting A Kitchen Sink Mount Type The type of mount is also an important decision.  Many sinks are top mount and sit on top of the counter.  But some sinks can be mounted from underneath the counter and sit below the surface.  And there's really one big distinction between the two that you may want to know. When the sink is mounted from the top it makes it pretty easy to install because a cutout can be made to match the size of the sink and then the sink is simply inserted down into the frame and then fixed in its position.  This gives a raised look and makes the sink sort of jump out of the counter top. When the sink is mounted from underneath the counter it sits flush with the counter.  This can be a desirable look because it doesn't pop out as much as a top mounted sink and from a side view you just see the surface of the counter.  This is an aesthetic feature that is desirable but it is also very functional.  When the counter is flush with the sink it makes it very easy to sweep messes and spills into the sink.