A copper farmhouse sink should be about 3 inches narrower than the cabinet it sits in, so a 33 inch sink goes in a 36 inch base. Choose one bowl unless you really soak and rinse separately, ask for the gauge in writing, and plan the support frame before the countertop is measured.
This guide covers the size, the depth, one bowl or two, the gauge, the installation and the drain. In September 2026 we also read every farmhouse sink listing at the seven workshops we check: 28 copper sinks at four of them. All 28 come in a 33 inch size, and none of them states its weight or its drain size.
What size copper farmhouse sink fits your cabinet?
Pick a sink about 3 inches narrower than the base cabinet: a 30 inch sink for a 33 inch cabinet, a 33 inch sink for a 36 inch cabinet. A true 36 inch sink needs a cabinet of 36 to 42 inches, depending on how much room there is inside it.
The Sink Boutique, a sink retailer, gives the standard pairings: 33″ farmhouse sink → minimum 36″ base cabinet, and for the largest size a base of 36 to 39 inches, depending on interior width. It adds that interior cabinet width, not nominal cabinet size, determines fit, and that the “+3 inches” rule applies mainly when retrofitting into standard sink bases. A base built for a farmhouse sink can be tighter. Sinkology is more cautious at the top end, pairing a 42″+ Cabinet 36″+ sink.
Handmade sinks make the measuring matter more. Sinkology warns that the actual dimensions may be slightly smaller than the size on the label, and 15 of the 28 copper listings we read say their sizes are outer dimensions. Twenty-five of them offer custom sizes, so if your cabinet is an odd width, ask the workshop to make the sink to fit it.
Should you buy a 33 or a 36 inch copper farmhouse sink?
Buy the 33 inch unless your cabinet is wider than 36 inches and you want the wider basin. At these workshops the 33 inch is also the deeper sink front to back, and it is the size every one of them makes.
All 28 copper sinks we read come in a 33 inch size, and every 33 inch size is 22 inches from front to back. Only 17 come in 36 inches, and 16 of those are 18 inches from front to back. So the wider sink is usually the shallower one, with less room for a sheet pan laid flat, which is easy to miss when you only compare widths.
Check the depth against your cabinet, too. Remodelista notes that standard base (below-counter) cabinets are 24 inches deep, and Copper Sinks Online, which sells copper sinks, says the sink can protrude approximately 2 1/2 inches at the front. A 22 inch sink then uses about 19.5 inches of the cabinet, leaving roughly 4.5 inches behind it for the faucet and supply lines, while an 18 inch sink leaves about 8.5. One CopperKesh listing gives a 30 inch size as 28 inches from front to back, which would not fit a standard base at all, so confirm every dimension before you order.
Price follows width. In our read, a single bowl copper sink at 33 inches runs from $892 to $2,200, and at 36 inches from $1,190 to $2,400.
Single or double bowl: which suits your kitchen?
One bowl suits most kitchens, because a large pan lies flat in it. Choose two if you wash by hand, soak in one side and rinse in the other, or often have two people at the sink.
Remodelista explains the traditional use of a double bowl: you’d fill one bowl with hot soapy water and the other with clear water for rinsing. It also quotes a designer who says our clients prefer one large bowl; in fact, we’re not installing any double-bowl sinks at all, because with a big single-bowl sink, it’s easy to clean that large roasting pan, wok, or lobster pot.
A divider also takes width from each side. In a 33 inch double sink, each bowl is less than half of that width once the walls and the divider are counted, so measure your largest pan before you choose two. The workshops lean single: 9 of the 28 copper sinks we read are double bowls, and at 33 inches they cost $1,699 to $2,400, against $892 to $2,200 for a single.
What gauge should a copper farmhouse sink be?
A lower gauge number means thicker copper, and for a kitchen farmhouse sink 14 or 16 gauge is the range to look for. Few listings say which you are getting, so ask.
Our guide to whether a copper sink is a good idea covers gauge in detail. For farmhouse sinks the listings are thin: only 3 of the 28 we read state a gauge, and all 3 say 16. One Zayian listing says its sinks are crafted from high-quality copper 16 gauge. For the other 25, ask the workshop to put the gauge in writing before you pay.
How is a copper farmhouse sink installed?
Almost always under the countertop, resting on a frame built inside the cabinet, with the apron standing slightly proud of the cabinet front. The sink goes in before the countertop, so it has to be on site before the counter is measured.
Copper Sinks Online says 99% of all farmhouse sinks are installed in the under-mount configuration. Its steps are to cut the front of the cabinet, then attach 2x4s to the back and sides of the cabinet so that the sink’s top rim is flush with the cabinet walls, set and seal the sink, and fit the countertop over it. It also advises to allow the silicone to dry for at least 24 hours before installing the faucet and drain.
The listings agree on the support. One Zayian sink notes that farmhouse sinks typically need support due to their size and weight, and Sinkology explains why the cabinet matters: most farmhouse sinks are installed into a cabinet with no countertop support in front. A farmhouse sink has no faucet deck of its own, so the faucet goes on the countertop behind it or on the wall. Our brass bridge faucets page lists ones that suit.
Drain, overflow and disposal: what should you check?
Ask for the drain size, whether there is an overflow, and whether the sink takes a garbage disposal. None of the copper listings we read gives a drain size.
The one farmhouse sink in our read that states its drain, a brass one, lists a Drain Size: 3.5 in (standard US drain), so that is the figure to confirm for a copper sink too. Overflows vary. Both Moroccan Interior sinks list Including overflow, while one Zayian sink says that this copper sink does not include an overflow. Seven of the 28 mention a garbage disposal and the other 21 say nothing about one, so ask before you plan one in.
Here are the numbers in this guide in one place:
| What | Number | Source |
|---|---|---|
| 30 in sink | Cabinet of 33 in or more | The Sink Boutique |
| 33 in sink | Cabinet of 36 in or more | The Sink Boutique |
| 36 in sink | Cabinet of 36 to 39 in, or 42 in | The Sink Boutique, Sinkology |
| Standard base cabinet depth | 24 in | Remodelista |
| Apron past the cabinet front | About 2.5 in | Copper Sinks Online |
| Farmhouse sinks installed undermount | 99% | Copper Sinks Online |
| Silicone before faucet and drain | At least 24 hours | Copper Sinks Online |
| 33 in copper sinks, front to back | 22 in, all 28 listings | Workshop listings |
| 36 in copper sinks, front to back | 18 in, 16 of 17 listings | Workshop listings |
| Single bowl, 33 in | $892 to $2,200 | Workshop listings |
| Double bowl, 33 in | $1,699 to $2,400 | Workshop listings |
| Single bowl, 36 in | $1,190 to $2,400 | Workshop listings |
What do the workshop listings tell you, and what do they leave out?
They give the outside size, the finish and whether custom sizes are possible. They leave out the weight, the drain size, the length of the warranty and, in most cases, the gauge.
What the listings say. In September 2026 we read every farmhouse sink listing at CopperKesh, Zayian, Rod & Rails, Artihand, Kinycraft, The House of Brass and Moroccan Interior. Four of the seven sell them: 35 sinks, 28 in copper and 7 in brass. The copper ones are 19 at Zayian, 5 at CopperKesh, 2 at Artihand and 2 at Moroccan Interior, and 9 of them are double bowls. All 28 come in 33 inches, 17 in 36 inches and 5 in 30 inches. Twenty-five offer custom sizes and 16 mention undermount installation. Twenty-one mention a warranty, but none says how long it lasts. Three state a gauge, all 16. None gives the sink’s weight, and none of the copper sinks gives a drain size.
Some listings contradict themselves. One CopperKesh double sink lists its 30 inch size as 18 inches deep in the size menu and 28 inches deep in the description, and one Moroccan Interior sink calls itself antique brass farmhouse sink in its story and Sink material: Copper in its details. Some sinks also appear at two workshops under the same name at different prices. Before you pay, ask for the exact outside and bowl dimensions, the gauge, the weight, the drain size, whether there is an overflow, and the warranty terms, all in writing. If you are weighing brass against copper, see copper vs brass vs bronze.
Can you get a discount on a copper farmhouse sink?
Yes, at CopperKesh. In September 2026 it had a code for 10% off its whole store, and Zayian and Moroccan Interior were both offering free worldwide express shipping.
We put every code through a real checkout before it goes on the site. Ten percent off the $980 CopperKesh hammered sink at 33 inches is $98, and off its $1,799 rounded front sink at the same size it is $179.90. Codes expire, so check the date each one was last tested on the CopperKesh, Zayian and Moroccan Interior store pages, and read how we verify codes.
So which copper farmhouse sink should you buy?
For most kitchens, a 33 inch single bowl in 14 or 16 gauge copper, set undermount in a 36 inch base with a proper support frame. Go to 36 inches only with a wider cabinet, and to two bowls only if you really wash that way.
Get the dimensions, gauge, weight and drain size in writing, have the sink on site before the countertop is measured, and browse copper farmhouse sinks with the codes we have checked. Once it is in, see how to clean a copper sink for the daily routine.
About the authors. JGD Editors are the people who check every code on JustGetDeal in a real checkout before it goes on the site, and who read the workshops’ own listings for the facts in these guides.
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