|Under Mount Sink|
You may want to replace your counter top or leave it be. If you keep the existing counter top, you will want to use the same type of sink you currently have now: under mount, or top mount. With an under mount sink, you can see the finished inner edge of the counter top as it connects to the sink, which is literally mounted (or attached) underneath the counter top.
Top Mount Sink
If your counter top does not have an under mount sink currently, that edge is not finished as a standard, and you will need to use a top mount, or surface mount, sink. This means that the sink is sitting on top of the existing counter top and attaches from above.
|Top Mount Sink |
with 2 holes
The price difference between an under mount and top mount sink is minimal, but you can save a little money with a top mount sink as the counter top does not have to have that finished edge, or holes for your faucet, which carry an additional charge for labor.
When shopping for a top mount kitchen sink, the last factor you want to consider is the number of holes in the sink. You may want to look for a faucet you like (or examine the faucet you are putting back in) and see how many holes it requires for installation. Sinks come with 0-4 holes, which are used for the faucet, hot/cold knobs, and soap dispenser. The faucet you choose will specify how many holes it requires. Often, but not always, a plate can be installed to cover the extra holes. These are all factors to consider in your sink shopping comparisons.