Faucet & Sink
What Is a Dual-Mount Sink? Fit and Countertop Planning
A dual-mount sink can be installed as drop-in or undermount only when the sink, counter, clips, and support method are compatible.
What to know about What Is a Dual-Mount Sink? Fit and Countertop Planning
A dual-mount sink is designed to be installed either as a drop-in/top-mount sink or as an undermount sink, but only when the specific sink, counter, clips, support, and cutout method allow it. It is not a guarantee that every counter can use either style.
Dual-mount decision table
| Mount style | What to verify | Stop point |
|---|---|---|
| Drop-in | Rim coverage, cutout size, faucet holes. | Do not enlarge stone cutouts casually. |
| Undermount | Support clips, counter material, edge finish. | Call pro for stone/solid-surface work. |
| Existing counter | Cutout and cabinet support. | Do not assume old cutout fits. |
| Disposal/faucet add-ons | Weight and clearance. | Check all spec sheets together. |