1 / 6Key features
- Constructed from 304 stainless steel with 16, 18, and 20 gauge thicknesses for superior durability.
- Versatile installation options: designed for both over-counter and under-counter setups.
- Features a full 12-inch deep basin, significantly thicker and sturdier than typical deep-drawn sinks.
- Includes a sturdy cover with handle to protect from weather, debris, and maintain cleanliness.
- Modern aesthetic with zero-radius square bowl shape and sharp 90-degree angles.
- Covered by our warranty — see details
Description
The Over/Under 20″ Single Basin Sink with Cover B‑SK20 is engineered for homeowners and professionals who demand both functionality and style. From the start, this Over/Under 20″ Single Basin Sink with Cover provides versatility in installation and top‑tier materials—constructed with 304 stainless steel across 16, 18, and 20 gauge thicknesses to withstand heavy use. Whether you need an over‑counter or under‑counter setup, this sink adapts easily, with all mounting hardware and detailed instructions included.
Measuring 20‑1/2″ W × 20‑1/2″ D × 11‑1/2″ H, with a required cut‑out of 19″ W × 19″ D, the Over/Under 20″ Single Basin Sink with Cover features a full 12‑inch deep basin—much thicker and sturdier than typical deep‑drawn sinks. The included sturdy cover with handle protects from weather and debris, helping maintain the sink’s finish and cleanliness. The sink’s zero‑radius square bowl shape and sharp 90‑degree angles provide a modern aesthetic that pairs perfectly with other premium Sunstone components.
Over/Under 20″ Single Basin Sink with Cover is built for durability. The stainless steel structure resists rust and corrosion both inside and out; the light brushed finish reduces visible wear. Ideal for indoor or outdoor kitchens, this sink can be installed atop thick counters or beneath them. It’s perfect for food prep, rinsing, entertainment stations, or as an auxiliary sink next to a grill. The sink includes all needed hardware, is easy to install, and arrives ready for mounting.
Specifications
| Type | Sink |
|---|---|
| Collection | Outdoor Bar Sinks |
| Width | 20-1/2" |
| Depth | 20-1/2" |
| Height | 11-1/2" |
| Dimensions | 20-1/2" W × 20-1/2" D × 11-1/2" H |
| Cut-Out Width | 19" |
| Cut-Out Depth | 19" |
| Material | 304 Stainless Steel |
| Gauge | 20 gauge |
| Finish | Brushed stainless |
| Brand | Sunstone |
| Basin Depth | 12" |
| Warranty | View warranty |
Compare models
| Compare5 models | |||||
|---|---|---|---|---|---|
| Price | $485.00 | $573.00 | $823.00 | $288.00 | $748.00 |
| SKU | B-SK20 | TEX-15SK | B-PS21 | A-SS17 | B-SK34 |
| Type | Sink | Sink | Sink | Sink | Sink |
| Width | 20-1/2" | 15-1/8" | 20-3/4" | 16-1/4" | 34" |
| Depth | 20-1/2" | 15-7/8" | 21" | 17-1/2" | 20" |
| Height | 11-1/2" | 11-3/4" | 12" | 6-1/2" | 12" |
| Cut-Out Width | 19" | 13-3/4" | 18-1/4" | 15" | — |
| Cut-Out Depth | 19" | 14" | 18-1/2" | 16-1/4" | — |
| Cut-Out Height | — | 11-3/4" | 9-1/2" | 5-1/2" | — |
| Material | 304 Stainless Steel | 304 Stainless Steel, 16-gauge | 304 Stainless Steel, 18-gauge | 304 Stainless Steel, Interior & Exterior | 304 Stainless Steel |
| Gauge | 20 gauge | 16 gauge | 18 gauge | — | 16 gauge |
| Finish | Brushed stainless | No. 4 brushed stainless | No. 4 brushed stainless | No. 4 brushed stainless | — |
| Installation | — | — | — | Drop-in | Over/Under Counter |
| Brand | Sunstone | Sunstone | Sunstone | Sunstone | Sunstone |
| Basin Depth | 12" | 9-1/4" | — | — | 12 inches |
| Drain | — | — | Kitchen-sized 3¾" Drain Well, Included Drain Stem | Kitchen-sized 3-3/4" Drain Well, included drain stem | — |
| Faucet & Dispenser | — | — | Hot & Cold Water Faucet, Soap Dispenser included | Hot & Cold Water Faucet with Soap Dispenser included | — |
| Warranty | |||||
| You're viewing this | View model | View model | View model | View model |
Documents (1)
Warranty
Warranty
Coverage depends on the product. The warranty page lists every term — read it there instead of a shortened line on this page.
Shipping & returns
Shipping & Delivery
All orders ship free to the 48 contiguous United States. We can ship products anywhere in the contiguous United States.
Larger (freight) shipments are curb-side only. A signature and possibly assistance may be required for unloading. We will work with you to arrange a delivery date and time, but the final details will be between you and the freight carrier.
IMPORTANT: ALL LTL DELIVERIES ARE CURBSIDE UNLESS WHITE GLOVE FEES ARE PAID. All reports of damage must be made within 48 hours after delivery.
Receiving Your Shipment
If you received an item that appears to have been damaged in-transit, call us immediately at 888-934-9449 or 512-487-5116, preferably while the driver is still there.
Inspect all freight before signing the driver's receipt. If damage is found, do not reject the shipment — note the damage on the receipt and contact us. For concealed damage, a claim must be filed within 48 hours of delivery.
FedEx and UPS claims are usually resolved within 14 business days. Freight shipper claims may take up to 120 calendar days.
Returns & Exchanges
Returns are accepted within 60 days of original purchase, in original packaging and unused, for a full refund minus a 15% Restocking Fee.
Items cannot have been installed or used. Customer is responsible for all return freight charges, unless the error is on our part. All returned goods must be in new condition and in original cartons, well packed.
We highly recommend insuring products when shipping back to us. Returns will be rejected if the product is received damaged.
Customer reviews
About our reviews: Reviews are collected from verified direct customers as well as sourced from our authorized dealer network, including Home Depot, Lowe's, Amazon, and other premium Sunstone dealers — ensuring a broad, authentic representation of real customer experiences.
This B-SK20 sink is a great addition to my outdoor kitchen. The 20-inch size is perfect for washing hands or rinsing off grilling tools without taking up too much counter space. The cover is a nice touch for keeping leaves and debris out when not in use, though it feels a little lighter than I expected.
I'm pretty happy with this Sunstone sink. Installation was straightforward, and the stainless steel feels durable enough for outdoor elements. It's really convenient to have a dedicated spot to clean up right next to the grill, and the single basin is plenty for my needs.
Absolutely love this B-SK20 sink! The 'Over/Under' design looks super clean in my new outdoor kitchen setup, and the build quality is top-notch. The cover is fantastic for keeping everything tidy and protected from the elements. Highly recommend for any serious outdoor chef!
This sink is exactly what I needed for my patio cooking area. The 20-inch basin is a good size for quick rinses, and the integrated cover is a brilliant feature for maintaining a clean look when not in use. It really elevates the whole outdoor kitchen aesthetic while being incredibly practical.
The B-SK20 sink does the job for my outdoor space, and the cover is useful. However, for the price, I was hoping for a slightly thicker gauge of stainless steel; it feels a bit thin compared to some other outdoor components I have. It functions, but doesn't quite blow me away.
Questions & answers
5 questions answered
Austin Outdoor Kitchens support team
Austin Outdoor Kitchens support team
Austin Outdoor Kitchens support team
Austin Outdoor Kitchens support team
Austin Outdoor Kitchens support team