Question & answer
Does a Farmhouse Sink Work with a Garbage Disposal?
Usually yes, but a thick fireclay bottom can need an extended flange. Ruvati gives a 3.5-inch drain on its RVL2300WH and says the 1-inch-thick bottom may need one. Check your disposal's flange against the sink before you order.
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The short answer
Yes, a farmhouse sink can usually take a garbage disposal, but check the details. Ruvati's RVL2300WH has a 3.5-inch drain, and Ruvati says its 1-inch-thick bottom may need an extended flange. Kohler's Whitehaven has an offset drain, with the drain sold separately. Check the drain size and thickness against your disposal's flange, and whether supports leave room below.
On this page
This depends on two numbers: the size of the drain hole and how thick the bottom of the bowl is.
What the sheets say
| Sink | Drain | Worth noting |
|---|---|---|
| Ruvati RVL2300WH | 3.5 in | The 1-inch-thick bottom may need an extended flange, per Ruvati |
| Kohler Whitehaven K-6489 | Offset | Drain sold separately, per Kohler |
| KRAUS KHF200-33 | Check the sheet | Steel is much thinner than fireclay |
| BOCCHI Classico 30 | Check the listing | We read conflicting drain details |
Steel's thinness makes this less of an issue. Ruvati says its steel RVH8300 fits standard disposals with the flange from your disposal, though it doesn't include one. The steel farmhouse may behave similarly, but confirm it.
What to check
- The drain opening. Is it the size your disposal's flange expects?
- The thickness of the bottom. With fireclay, ask about an extended flange. See fireclay farmhouse sinks.
- The room under the bowl. Supports, drain lines and the disposal all share the space.
- The weight. A disposal hangs from the sink's drain, so the weight on the supports goes up.
Next step
Ask your plumber to look at the sink's sheet and your disposal together. The install overview shows when plumbing happens in the job. If you're choosing, the Ruvati RVL2300WH* is at least clear about the flange, and the farmhouse page compares it with steel.
Asked before buying
What is an extended flange?
It's a longer version of the disposal's flange, the part that connects the disposal to the sink's drain hole. A thick bottom like a 1-inch fireclay one can be too deep for a standard flange. Check with the disposal maker whether one exists for your unit.
Will the disposal fit under the sink?
Measure. The Sink Boutique says most farmhouse sinks are about 9 to 10 inches deep, and the drain lines may need rerouting. That bottom sits low, and supports also take up room. Check the disposal's height against the space under the bowl before you commit.
Where this comes from
Read next
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How toHow it's installedHow a farmhouse sink gets installed, following KRAUS's manual: supports, cabinet cut, reveal, counter cut and plumbing, and who should do which part.- Question & answerHow Heavy Is a Farmhouse Sink?How heavy is a farmhouse sink? One fireclay listing gives 76.81 pounds. Why it varies by material, and what weight means for the supports in your cabinet.
- What to buyFarmhouseStainless steel farmhouse sinks: the apron look without a glaze to chip, what they need from your cabinet, and how they compare to fireclay and cast iron.
Who writes this
stainlesssteelkitchensink.com Editorial Team
Kitchen sinks & fit
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