Kohler · Top-mount / drop-in; single bowl
Kohler K-3348-3 dimensions
Single-bowl top-mount kitchen sink, three deck holes
Manufacturer documentation reviewed 2026-09-23; individual fact dates are retained below. This is a research record, not a hands-on review.
Manufacturer product information ↗Some source details remain unresolved. Review the notes and confirm them with the manufacturer before ordering.
Opening requirements and body dimensions
Use the opening requirements for the installation shown. The appliance-body dimensions are provided separately for reference. “Not verified” means the requirement has not been established in this record.
| Measurement | Documented value |
|---|---|
| Minimum opening width | 24.5 in |
| Maximum opening width | Not verified |
| Minimum opening height | Not verified |
| Maximum opening height | Not verified |
| Minimum opening depth | 21.5 in |
| Maximum opening depth | Not verified |
| Appliance body width | Not verified |
| Appliance body height | Not verified |
| Appliance body depth | Not verified |
Cutout dimensions are the countertop opening for a drop-in / top-mount installation. Sink outer dimensions are recorded separately where published and are NOT an opening requirement. Undermount installations use a different cutout and are not covered by these records.
Compare your opening with the documented dimensions
This checks only the opening measurements recorded below. Conditional cutouts, trim, ventilation, utilities, support and delivery access still need a separate review.
Installation details to review
- The published cutout is a template dimension, not a minimum. A hole cut larger than the published cutout may leave the sink rim unable to cover it.
- No manufacturer in these records publishes a MAXIMUM cutout, so no maximum is recorded. When fitting a sink into an existing countertop hole, the installer must confirm rim coverage against the actual hole.
- Corner radius is part of the cutout specification and differs between models. A square-cornered hole will not accept a radiused template.
- Use the manufacturer's own cutout template for the exact model. Do not scale a drawing or reuse another model's template.
- The minimum cabinet or base cabinet width is a separate requirement from the countertop cutout; both must be satisfied.
- Minimum base cabinet width is published as 27 inches (686 mm).
- The specification sheet states that all product dimensions are nominal. Confirm against the installation instructions and the supplied template.
- The installer must supply mounting hardware for countertops 2-1/2 inches (64 mm) thick or less; the sheet refers to installation kit 1177161.
Availability and finish options were not verified.
Confirm the full model suffix and the revision of the installation instructions. Dimensional checks do not establish utility compatibility, structural support, safe clearances or installation approval.
The evidence behind this record
- Kohler K-3348-3 specification sheet ↗ manufacturer-product-specification
View individual facts and their sources
| Fact | Recorded information | Source |
|---|---|---|
| Opening · min Width | 24.5 in Cutout: Top-mount, 24-1/2" x 21-1/2" (622 mm x 546 mm) with 1/2" (13 mm) radius corners. Observed 2026-09-23 | Manufacturer evidence ↗ |
| Opening · min Depth | 21.5 in Cutout front-to-back dimension from the same published top-mount cutout figure. Observed 2026-09-23 | Manufacturer evidence ↗ |
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