30" Undermount Stainless Steel Single Bowl Kitchen Sink with 2" Radius Corners

The Allora USA KSN-3018-9-S-R50 is a 30-inch single bowl undermount kitchen sink with 2-inch radius corners. The updated corners give the bowl a more defined appearance while retaining the rounded profile of a traditional stainless steel sink. It gives builders, fabricators, and designers another design option within a familiar 30" × 18" footprint.

The 28" × 16" bowl provides uninterrupted space for cookware, food preparation, and daily cleanup. Its 9-inch bowl depth accommodates larger items, and the sink fits a minimum 33-inch base cabinet. A rear-set 3½-inch drain helps preserve usable space beneath the front of the sink.

The sink is made from 18-gauge, 304 stainless steel with a brushed satin finish. It includes a pre-installed sound pad, cutout template, and mounting hardware. The KSN-3018-9-S-R50 is backed by Allora USA’s Limited Lifetime Warranty.

Key features

• 2-inch radius corners provide an updated version of the traditional rounded-corner sink.

• 30" × 18" footprint fits a minimum 33-inch base cabinet.

• Single bowl design provides a 28" × 16" interior opening and 9-inch bowl depth.

• Undermount installation creates a clean transition from countertop to sink.

• 18-gauge, 304 stainless steel provides durable construction for daily use.

• Rear-set 3½-inch drain helps maintain usable storage space below the sink.

• Pre-installed sound pad helps reduce noise during use.

• Cutout template and mounting hardware are included for installation.

• Limited Lifetime Warranty provides long-term product coverage.

How is the R50 different from the KSN-3018-9-S?
The R50 has a defined 2-inch corner radius. The standard KSN-3018-9-S has a broader, traditional rounded-corner profile. Both have a 30" × 18" footprint.

What is the minimum cabinet size?
The KSN-3018-9-S-R50 requires a minimum 33-inch base cabinet. Fabricators should measure the delivered sink before cutting the countertop.

• Configuration Single Bowl
• Size (outside): 30" x 18" x 9-1/4"
• Size (Inside): 28" x 16"
• Bowl Depth: 9"
• Corner Radius: 2" (50mm)
• Min Cabinet Size: 33"
• Installation: Undermount
• Material: 304 Stainless Steel
• Finish: Brushed Satin
• Insulation: Noise-Reducing Coated Rubber Sound Pad
• Included Accessories: Cutout template and mounting hardware
• Thickness: 18-gauge
• Warranty Limited Lifetime Warranty