For a classic tall-apron cast iron sink, pick the Kohler Whitehaven K-5827 (33-inch cabinet). For a small sink in a standard 24-inch cabinet, pick the Whitehaven K-5664. For a large cast iron workstation, pick the Riverby K-24564. For stainless in a standard 36-inch cabinet, pick the Vault K-3943. Tall aprons need an apron-front cabinet.
Plumbing Picks is reader-supported. As an Amazon Associate, we earn from qualifying purchases at no extra cost to you.
This guide compares four Kohler farmhouse sinks using Kohler’s own spec sheets.
Kohler farmhouse sinks compared (Kohler spec sheets)
On a phone, swipe or scroll the table sideways to see every column.
| Sink | Material / apron | Bowl (L × W × depth) | Cabinet |
|---|---|---|---|
| Whitehaven K-5827 (32-3/4 in.) | Enameled cast iron; tall apron | 27-3/4 × 18-1/16 × about 9 in. | 33 in. apron sink base |
| Whitehaven K-5664 (23-1/2 in.) | Enameled cast iron; short apron | 18-13/16 × 18-1/16 × 9 in. | 24 in. standard base |
| Riverby K-24564 (35-3/4 in.) | Enameled cast iron workstation; tall apron | 30-1/4 × 15-13/16 × 9 in. | 36 in. apron sink base |
| Vault K-3943 (35-1/2 in.) | 18-gauge stainless; short apron | 32-1/2 × 17-3/16 × 9 in. | 36 in. standard base |
The biggest difference between Kohler farmhouse sinks is the apron height. A tall apron needs an apron-front sink base cabinet with a lowered front. A short apron, on the Whitehaven K-5664 and Vault K-3943, is designed so the sink can go into most standard cabinets or be retrofitted into an existing one. All four have Kohler’s Self-Trimming apron, which overlaps the cabinet face.
Kohler Whitehaven K-5827: 33-inch cast iron, tall apron
Choose the Whitehaven K-5827 for a classic tall-apron cast iron sink in a 33-inch apron cabinet. Kohler’s spec sheet (resources.kohler.com) lists enameled cast iron, a single bowl 27-3/4 × 18-1/16 inches, a bowl that slopes toward an offset drain, a 3-5/8-inch drain hole, undermount installation with cutout templates included, and a 33-inch minimum apron sink base cabinet.
Kohler lists a 9-inch water depth and an 8-13/16-inch bowl depth in the same sheet. It also notes that the distance from the top edge of the cabinet to the top of the cabinet door must be at least 9 inches. The drain and strainer are listed accessories, not included.
On October 15, 2026, the standard new offer sold by Amazon.com showed limited stock with model 5827-0, white.
Check Kohler Whitehaven K-5827-0 farmhouse sink on Amazon →
Kohler Whitehaven K-5664: 24-inch, short apron
Choose the Whitehaven K-5664 for a small farmhouse sink in a standard 24-inch cabinet. Kohler’s spec sheet (resources.kohler.com) lists enameled cast iron, a single bowl 18-13/16 × 18-1/16 × 9 inches, a center drain, a 3-5/8-inch drain hole, a shortened apron so it can go into most standard cabinetry or be retrofitted, undermount installation with templates included, and a 24-inch minimum base cabinet.
Because the apron is shorter, Kohler lists a smaller clearance: at least 6-7/8 inches from the top edge of the cabinet to the top of the door. Its 24-inch size makes it the option here for a bar, prep area or small kitchen.
On October 15, 2026, the standard new offer sold by Buildcom showed limited stock with model K-5664-0, white.
Check Kohler Whitehaven K-5664-0 farmhouse sink on Amazon →
Kohler Riverby K-24564: cast iron workstation
Choose the Riverby K-24564 for a large cast iron farmhouse sink with workstation ledges. Kohler’s spec sheet (resources.kohler.com) lists enameled cast iron with an acid-resistant enamel finish, a single bowl 30-1/4 × 15-13/16 × 9 inches, a bowl that slopes toward an offset drain, a 3-7/8-inch drain hole, undermount installation for a 36-inch apron-front cabinet, and undermount and apron templates included.
It includes a K-6194 utility rack with soaking cup and a K-6246 maple cutting board. Kohler lists sink racks (K-6237 left or K-6255 right) and a drain as required accessories sold separately, and a colander with cutting board as recommended.
On October 15, 2026, the standard new offer sold by eFaucets showed limited stock with model 24564-0, white.
Check Kohler Riverby K-24564-0 farmhouse workstation sink on Amazon →
For other ledge-style sinks, see our workstation kitchen sink guide.
Kohler Vault K-3943: stainless, short apron
Choose the Vault K-3943 for a stainless farmhouse sink that fits a standard 36-inch cabinet. Kohler’s spec sheet (resources.kohler.com) lists handcrafted 18-gauge stainless steel, a single bowl 32-1/2 × 17-3/16 × 9 inches, a short Self-Trimming apron for standard or retrofitted cabinetry, rear drain placement for more storage underneath, a 3-11/16-inch drain hole, and a 36-inch cabinet. It includes installation hardware and a K-6474 bottom sink rack.
Kohler notes that the back 1-inch rim flange needs at least 3 inches of clearance for clip attachment, while the 3/4-inch side flanges are supported without clips.
On October 15, 2026, the standard new offer sold by Amazon.com showed limited stock with model K-3943-NA.
Check Kohler Vault K-3943-NA stainless farmhouse sink on Amazon →
Tall apron or short apron?
A tall-apron sink, like the Whitehaven K-5827 or Riverby K-24564, needs a base cabinet built for an apron-front sink, with a lowered face frame and enough height above the doors; Kohler lists 9 inches for the K-5827. A short-apron sink, like the Whitehaven K-5664 or Vault K-3943, is the easier retrofit: Kohler says it can go into most standard cabinets. Whichever you choose, the countertop cutout must be made from Kohler’s current template.
Measure before you order
Check four things. First, the cabinet width: 24, 33 or 36 inches depending on the sink. Second, for a tall-apron sink, the height from the top of the cabinet to the top of the doors, which Kohler lists as at least 9 inches for the Whitehaven K-5827. Third, the faucet: none of the four sheets lists faucet holes, so the faucet mounts through the countertop behind the sink or on the wall.
Fourth, the drain position: the Whitehaven K-5827 and Riverby have offset drains, the K-5664 a center drain and the Vault a rear drain, which changes where the trap sits in the cabinet.
Cast iron or stainless?
The three Whitehaven and Riverby sinks are enameled cast iron and carry Kohler’s enameled cast iron lifetime limited warranty; Kohler recommends its cast iron cleaner for them. The Vault is 18-gauge stainless with Kohler’s stainless sink lifetime limited warranty and comes with a bottom rack. Cast iron is much heavier, so plan support for the undermount installation and follow Kohler’s installation guide.
None of the four includes a drain. Our basket strainer guide covers strainers; the Whitehaven sinks have 3-5/8-inch drain holes, the Riverby 3-7/8 and the Vault 3-11/16. For farmhouse sinks from other brands, see our farmhouse sink guide, and for Kohler’s standard sinks our Kohler kitchen sink guide.
Frequently asked questions
What size cabinet does a Kohler farmhouse sink need?
33 inches for the Whitehaven K-5827, 24 inches for the K-5664, and 36 inches for the Riverby K-24564 and Vault K-3943, per Kohler.
Can a Kohler farmhouse sink go in a standard cabinet?
The short-apron Whitehaven K-5664 and Vault K-3943 are designed for most standard or retrofitted cabinets; the tall-apron models need an apron sink base.
Are Kohler farmhouse sinks undermount?
Yes, all four here are undermount with a Self-Trimming apron.
Does the Riverby farmhouse sink include accessories?
It includes a utility rack with soaking cup and a maple cutting board; Kohler lists the sink racks as sold separately.
Do Kohler farmhouse sinks come with a drain?
No. Kohler lists the drain and strainer as separate accessories.
How we chose
This document-based guide makes no hands-on testing claim. We read and rendered Kohler’s spec sheets for the K-5827, K-5664, K-24564 and K-3943. On October 15, 2026, we checked each linked standard new Amazon offer for model, seller, stock and an add-to-cart button. The 35-3/4-inch Whitehaven K-6489 is covered in our Kohler kitchen sink guide. Read our selection method and about Plumbing Picks.
Primary sources
- Kohler Whitehaven K-5827 spec sheet (resources.kohler.com): 33 in. apron base, bowl, depth figures, 9 in. door clearance.
- Kohler Whitehaven K-5664 spec sheet (resources.kohler.com): short apron, 24 in. base, center drain, 6-7/8 in. clearance.
- Kohler Riverby K-24564 spec sheet (resources.kohler.com): workstation, included rack/board, required racks, 36 in.
- Kohler Vault K-3943 spec sheet (resources.kohler.com): 18 ga, short apron, rear drain, included rack, clip clearance.