Acorn-Sinks® Stainless Steel ADA Undermount Sink, 21" x 16", Right Offset Drain

SUADADR-2116 is an ADA compliant, undermount style, single bowl sink measuring 23-1/2" x 18-1/4" with a bowl size of 21" x 15-3/4". The sink is available in 5-1/2" or 4-1/2" bowl depth. The 3-1/2" drain is offset 5" from the right wall of the bowl and 5" from the back wall of the bowl. A minimum cabinet size of 27" is required.
Acorn-Sinks® Features & Benefits:
- Right Offset Drain
- Seamless, die-drawn construction of 18-gauge, type 304 stainless steel polished to a #4 satin finish
- Simple undermount installation
- Sound deadening pads on the sink bottom for reduced noise
- Vertical side walls feature a 1-3/4" internal radius for increased resistance to glass tipping and breakage
- Meticulous packaging that prevents shipping damage
- UPC, cUPC, and IPC compliant
SUADADR-2116-55 features a 5-1/2" (140 mm) deep x 15-3/4" (400 mm) front-to-back x 21" (533 mm) wide (side-to-side) bowl with 1-3/4" (44 mm) radius corners. A 3-1/2" (89 mm) diameter drain is punched 5" (127 mm) from the rear wall of the bowl and 5" (127 mm) from the right wall of the bowl. These specific dimensions provide ADA compliance; however, please check your local requirements. ADA compliance is subject to proper installation and the interpretations of the local code authority. Overall dimensions are 23-1/2" (597 mm) side-to-side x 18-1/4" (464 mm) front-to-back.
SUADADR-2116-45 features the same dimensions but a 4-1/2" (114 mm) bowl depth.
Downloads
Specifications
| Brand | Acorn-Sinks® |
| Material | Stainless Steel |
| Mounting | Undermount |
| Minimum Cabinet Size | 27" |
| Accessibility | ADA Compliant |
| Compliance | UPC, ASME A112.19.3/CSA B45.4 |
| Number of Bowls | Single |
| Bowl Depth | 5.5", 4.5" |
| Gauge | 18 |
| Drain Size | 3-1/2" |
| Drain Location | Right - Rear |
| Bowl Dimensions | 21" (Side-to-Side) x 15-3/4" (Front-to-Back) |
| Overall Dimensions | 23-1/2" (Side-to-Side) x 18-1/4" (Front-to-Back) |
| Cutout Dimensions | See cutout template |
Options
Accessories
Image | Model | Description | Downloads | |
|---|---|---|---|---|
![]() | BK | Accessory: Acorn-Sinks® Undermount Sink Brackets | ||
![]() | BST | Accessory: Acorn-Sinks® Basket Strainer |
Miscellaneous
Image | Model | Description | Downloads |
|---|
Models
Typical models are shown below

SUADADR-2116-55
5.5 inch (140 mm) bowl depth
undermount sink

SUADADR-2116-45
4.5 inch (114 mm) bowl depth
undermount sink
Details

Acorn-Sinks® Product Number System
This is how our Acorn-Sinks products are numbered. The graphic below is an example. It does not necessarily reflect the product above.











