Outdoor Kitchen Sinks

Do I need to run plumbing to an outdoor sink?

Yes. Every sink in this collection is a plumbed fixture, not a portable basin, and most ship as a hot-and-cold package: the Coyote 21" C3SINKF21, the Sunstone ADASK20 and ADASK37, the TrueFlame 15" drop-in and 19" undermount, and the Summerset SSNK-15D and SSNK-19U all include a hot/cold faucet and a drain. That means a supply line, a waste line and, in most jurisdictions, backflow protection and a plan for winterising the run. Water supply and drainage work should be specified and carried out by a licensed plumber to your local code, using the installation instructions supplied with the sink.

What size cutout does a drop-in outdoor sink need?

There is no universal figure, so work from the cutout published for the exact model. Among the sinks here, the TrueFlame 15" x 15" drop-in (TF-NK-15D) calls for a 14 3/8" W x 16 1/2" D opening, the Summerset SSNK-15D calls for 14 3/8" x 14 3/8", the Coyote 21" C3SINKF21 needs 18 1/4" W x 18 1/4" D x 13 3/4" H, and the Sunstone ADASK20 needs 16-3/4" W x 19-1/2" D x 3-3/4" H. Confirm the cutout on the product page before anyone cuts a countertop, since the opening cannot be made smaller afterwards.

What is the difference between a drop-in, an undermount and a farmhouse sink?

A drop-in sink sits into the countertop with its rim resting on the surface, which is the simplest installation and the easiest to retrofit; the TrueFlame TF-NK-15D and the Summerset SSNK-15D are drop-ins. An undermount sink is fixed beneath the counter so the surface runs straight to the basin with no lip, which suits stone tops and makes wiping debris in easy; the TrueFlame TF-NK-19U and Summerset SSNK-19U are undermounts. A farmhouse sink, such as the Coyote 30" Farmhouse, has an apron front that extends below the counter line and a deep single basin for large pans and grill grates.

Does an outdoor sink come with a faucet?

In this collection, usually yes, but check the listing rather than assuming. The Coyote 21" C3SINKF21 arrives as a full package with a hot/cold faucet, soap dispenser, drain and strainer, a cutting board and a stainless cover. The Sunstone ADASK20 and ADASK37 include a hot/cold faucet, soap dispenser, drains and weather covers. The TrueFlame and Summerset sinks include a faucet and a stopper or strainer. The Coyote 16" x 18" drop-in is the exception: it is listed with a drain assembly and plug, with no faucet in the box.

What makes a sink ADA compliant, and do I need one?

The ADA-compliant sinks here use shallow basins so a seated user can reach across them: Sunstone lists a 4-inch basin depth on the ADASK20 single and the ADASK37 double. Sunstone also builds the ADA44BC base cabinet specifically to house the 37" ADASK37, using lowered 2-inch peg legs and flush kick plates to reach an installed counter height of about 33 inches, with an adjustable centre access panel that can be set back so a wheelchair can pull closer. Whether your project is required to meet accessibility standards is a code question for your local authority or your designer, not something to decide from a product page.

Will a stainless outdoor sink rust?

Every sink in this collection is built in 304 stainless steel, which is the grade used precisely because it resists rust and corrosion outdoors; Sunstone specifies 18-gauge 304 on the ADASK37 and ADASK20. Stainless still benefits from being rinsed and wiped down, particularly in coastal air where salt deposits sit on the surface. Several models help here by including a cover: the Coyote C3SINKF21 ships with a stainless sink cover, and both Sunstone ADA sinks include stainless covers that keep leaves and grit out of the basin between uses.

How do I stop an outdoor sink freezing in winter?

The sink itself is stainless and tolerates cold, but the supply and waste lines behind it are what fail in a freeze. The usual approaches are draining and isolating the outdoor run before the first hard frost, or specifying frost-protected pipework from the outset. Which one is appropriate depends on your climate, how the island is built and what your local code requires, so have the run designed and winterised by a licensed plumber rather than improvising. If the sink sits in a larger build, plan this at the same time as the rest of the outdoor kitchen island.