How to Use a Single-Hole Faucet in an 8-Inch Spread, 3-Hole Sink
By Chris Deziel Updated September 26, 2017
Sinks usually come with three standard holes so you don't have to make your own. One hole is in the center and two on the outside, spaced either 4 or 8 inches apart. Single-handle faucets with central water tubes that fit through one hole sometimes come affixed to a base long enough to cover the unused holes. Some modern faucets, however, as well as those intended for custom installations, may not have a base. If you want to use one of these on an 8-inch three-hole sink, you'll have to cover up the unused holes.