"Works like a dream"








31" Large Undermount Stainless Steel Single Bowl Kitchen Sink, KSN-3118-9-S
Order by 12 PM EST for Same-Day Shipping. Guaranteed.
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Order by 12 PM EST for Same-Day Shipping. Guaranteed.
Order by 12 PM EST for Same-Day Shipping. Guaranteed.
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Specification Sheet (PDF)
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CutOut Template (DXF)
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BIM File (RFA)
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Installation Guide (PDF)
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For Additional CutOut Templates and Design Files, click here
The Allora USA 31-inch single bowl undermount sink offers the generous space of a large basin with the clean, uninterrupted functionality that only a single bowl can provide. Whether you're handling oversized cookware, prepping for a dinner party, or cleaning up with ease, this sink delivers the capacity and freedom of movement that busy kitchens demand. Crafted from 18-gauge, 304-grade stainless steel with a brushed satin finish, it blends long-term durability with refined, modern design.
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Spacious single bowl easily accommodates baking sheets, stock pots, and wide cookware
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31-inch width maximizes usable work area
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Undermount installation creates a seamless transition from sink to countertop, simplifying cleanup
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Made from durable 18-gauge, 304 stainless steel for lasting strength and corrosion resistance
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Brushed satin finish helps conceal minor scratches and complements a wide range of kitchen styles
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9-inch bowl depth contains splashes and provides plenty of space for soaking and rinsing
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Standard-radius corners offer a classic aesthetic and are easy to maintain
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Rear 3-1/2 inch drain optimizes flat bottom workspace and increases cabinet storage below
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Gently sloped basin supports fast, efficient drainage toward the drain
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Full undercoating and sound-dampening pads reduce noise and help minimize condensation
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Compatible with most garbage disposals (drain kit sold separately)
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Includes mounting hardware and cutout template for quick, accurate installation
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Protected by Allora USA’s Limited Lifetime Warranty
Designed for kitchens that need space without excess bulk, this 31-inch single bowl sink offers professional-grade functionality in a sleek, adaptable form—ideal for anyone who values simplicity, versatility, and reliable performance.
- Bowls Single Bowl
- Size (outside): 31-1/4" x 18-1/8" x 9"
- Size (Inside): 29-1/8" x 16" x 8-3/4"
- Min Cabinet Size: 36"
- Installation: Undermount
- Material: 18-Gauge 304 Stainless Steel
- Insulation: Noise-Reducing Coated Rubber Sound Pad
- Thickness: 18-gauge
- Warranty Limited Lifetime Warranty
WHY CHOOSE ALLORA USA
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Overall rating: 5.0 / 5 from 3 reviews.
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Reviews
3118 under mount
"Excellent delivery time, and great quality"
Absolutely love my new sink!
"I replaced a double sink with this amazing single basin sink. The quality is great and the installation was very easy. The customer service received was top notch as well! The helped me find a sink that would fit perfectly and replace the current sink without me having to redo my counter tops. I couldn't be happier!!! See before and after photos. The previous sink was also Allora but I prefer a single basin instead of double basin. Both are great quality though!"







