The best single bowl cast iron sinks combine timeless durability with practical workspaces. This guide highlights five top options, each suited for different kitchen setups—from compact apartments to spacious, pro-style layouts. If you need a deep, generous basin for large pots, or a broader surface for soaking, you’ll find a fit here. The selections below emphasize durable construction, easy cleanup, and compatibility with common install styles. Use the quick-reference table to compare key specs at a glance.
Summary table of selected products:
| Product | Size / Type | Depth | Mounting | Best For |
|---|---|---|---|---|
| Quince 33 x 22 Single Bowl Cast Iron Sink | 33″ x 22″, 3 holes | 9-3/8″ | Top/Undermount | Large, deep single basin; kitchen with pre-cut 3-hole configuration |
| Kohler Riverby 33″ Undermount Single-Bowl Workstation | 33″ x 22″ | Deep bowl (9″+) | Undermount with workstation components | Spacious basin; compatible with accessories |
| American Standard Delancey 30 x 19 | 30″ x 19″ | Standard depth | Top-mount/Undermount | Compact space-saving single bowl |
| KOHLER Iron/Tones 33″ Top-/Undermount | 33″ | 9″ | Top/Undermount | Flexible mounting; generous workspace |
| American Standard Delancey 18 x 16 | 18″ x 16″ | Compact depth | Top-mount/Undermount | Small-space renovation or secondary prep sink |
Quince 33 x 22 Single Bowl Cast Iron Kitchen Sink

Brand: American Standard. Features: Cast Iron Single Bowl Sink, 3 hole, 9-3/8″ deep bowl. This model is best for kitchens needing a deep single basin with a three-hole configuration for faucet and accessories. The 33″ width offers substantial workspace on the counter edge. A limitation is the 3-hole setup which may constrain certain faucet styles without adaptors.
Who it’s best for: Homeowners with ample counter space and a 3-hole faucet plan seeking a durable, classic white cast iron sink. Why selected: combines generous depth with a traditional three-hole layout for common faucet configurations.
Kohler Riverby 33″ Undermount Single-Bowl Workstation Sink

Brand: Kohler. Features: Durable enameled cast iron construction resists chipping, cracking, and burning. Large single-bowl design provides ample space for soaking and washing large pots and pans. Includes custom-fit colander, utility rack with soaking cup, and stainless steel sink rack. Best for: cooks who want a workstation experience with included accessories and a roomy basin. Caution: the full workstation kit increases setup complexity and requires compatible counter cutouts.
American Standard Delancey 30 x 19 Single Bowl Cast Iron Sink

Brand: American Standard. Features: 30″ x 19″ single bowl cast iron kitchen sink in Brilliant White. Best for compact kitchens needing a sturdy, classic cast iron option with a clean white finish. Selection note: this model focuses on size efficiency rather than an extensive accessory set.
KOHLER Iron/Tones 33″ Top-/Undermount Sink

Brand: Kohler. Features: 33″ top-/undermount single bowl, 9″ depth. This option offers mounting flexibility to fit a range of cabinets, with a deep basin that provides generous workspace. Best for: remodels requiring both top-mill and undermount capabilities. Caution: ensure cabinet width meets the 33″ minimum requirement for all mounting styles.
American Standard Delancey 18 x 16 Single Bowl

Brand: American Standard. Features: 18″ x 16″ single bowl cast iron kitchen sink in Brilliant White. Best for small spaces or secondary prep areas where a compact, durable sink is required. Limitation: compact size reduces capacity for larger pots and pans.
Buying Guide
What to consider when choosing a single bowl cast iron sink
- Size and cabinet fit: Ensure the sink width matches your base cabinet opening. Larger models like 33″ sinks require wide cabinets, while smaller 18″ x 16″ units fit compact kitchens.
- Mounting style: Decide between top-mount, undermount, or hybrid (top-/undermount). Undermounts offer clean lines and easier countertop cleanup, while top-mounts are typically easier to install.
- Bowl depth: Deeper bowls (around 9 inches) handle large pots and frequent soaking tasks better, but may impact overall cabinet space and clearance.
- Finish and durability: Cast iron with enamel finishes resists chips and scratches; white finishes require routine care to maintain luster.
- Included accessories: Some Kohler Riverby options include colanders and racks, which add value for workstation setups. Consider whether these extras help your workflow.
- Installation considerations: Verify compatibility with your faucet configuration (three-hole setups vs. single-hole) and countertop edge treatments. Some models require specific cutouts or mounting hardware.
FAQ
- Are cast iron sinks heavy?
- Which sink is best for a large family kitchen?
- Do these sinks come with accessories?
- Can I install a top-mount cast iron sink in an undermount cutout?
- What maintenance is needed for enamel-coated cast iron?
- Is a deep sink better for everyday use?
Yes. Cast iron sinks are significantly heavier than most alternatives, requiring sturdy cabinetry and proper support during installation.
A larger single-bowl sink, such as a 33″ model with a deep basin, is generally best for handling big pots and frequent heavy washing tasks.
Some models include accessories like colanders and racks; check the product features for specifics on included items.
Typically not recommended. Undermount cutouts require compatible undermount sinks and cabinetry, while top-mount sinks sit flush with the counter edge.
Clean with non-abrasive cleaners to prevent scratches. Avoid harsh chemicals and steel wool to preserve the enamel finish.
A deeper sink reduces splashes and accommodates large cookware, but it may require more countertop space and cabinet clearance.