I need a new kitchen sink but am overwhelmed by all the materials and styles. Can you explain the merits of a top-mount sink versus an undermount sink?
When a sink has its rim lying on top of a counter (i.e. is top-mounted), crumbs inevitably clump along that edge and the sound of a knife scraping against a stone counter to clean out that gunk is like nails on a chalkboard. Undermounting allows any crumbs to be wiped straight into the sink – easy peasy.
My sink of choice is double-deep, made of stainless steel and undermounted. I like it deep to hide dirty dishes and stainless steel is durable while matching the appliances.
I reached this conclusion the hard way – after trying a white ceramic sink that stained and an apron sink that stuck out like a sore thumb. The only reason for a top-mount sink? If you don't use a solid material for the counter, the sink hides the edge. So if it's in your budget, go with a solid counter and undermount sink.