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Schlage ND91-BD-BRK Vandlgard Entrance/Office Cylindrical Lock, Boardwalk Lever, SFIC Prep Less Core, 2-3/4 Backset, 4-7/8 Inch Strike, Grade 1, Non Handed
The Schlage ND91BD-BRK is a Grade 1 cylindrical lock built for high-traffic commercial openings that demand durability and security. Part of the popular ND Series, this Entrance/Office function lock features Schlage's Vandlgard technology, which lets the outside lever rotate freely when locked to resist forced entry and reduce abuse-related damage. It comes prepped for a Small Format Interchangeable Core (SFIC) and ships less core, so you can pair it with your existing keying system. The Boardwalk (BRK) lever offers a clean, modern profile, while the non-handed design and 2-3/4-inch backset simplify installation on doors across a facility.
Features
- Vandlgard clutch mechanism allows the outside lever to rotate freely when locked, protecting the lock from abuse and forced entry.
- Boardwalk (BRK) lever design provides a contemporary look with comfortable operation.
- Prepped for a Small Format Interchangeable Core and supplied less core for flexible keying.
- Grade 1 certified for the highest level of commercial performance and durability.
- Non-handed for straightforward installation on either left- or right-hand doors.
- Includes a 4-7/8-inch ANSI strike and a standard 2-3/4-inch backset.
Functional Details
The ND91 Entrance/Office function is designed for spaces that need controlled access with everyday convenience. Latch operation is controlled by key and turn/push buttons, allowing occupants to lock or unlock the door from inside as needed.
- Latchbolt operated by lever from either side except when outside lever is locked by push/turn button.
- When outside lever is locked, latchbolt is operated by key in outside lever or by rotating inside lever.
- Push/turn button locking; turning inside lever or closing door releases button.
Included Components
The lock ships with the Boardwalk lever trim, a 4-7/8-inch curved lip ANSI strike, and mounting hardware. A Small Format Interchangeable Core is not included and must be ordered separately.
| Manufacturer | Schlage |
|---|---|
| SKU | ND91BD-BRK |
| Series | ND Series Cylindrical Lock |
| Function | Entrance/Office (Vandlgard) |
| Lever Style | Boardwalk (BRK) |
| Grade | ANSI/BHMA Grade 1 |
| Handing | Non-Handed |
| Cylinder | SFIC Prep, Less Core |
| Origin | Made in USA |
| Unit of Measure | Each |
| Limited Warranty | Three-Year Limited Warranty |
| Backset | 2-3/4 inches |
|---|---|
| Strike | 4-7/8 inch ANSI curved lip |
| Latchbolt Throw | 1/2 inch |
| Door Thickness | 1-3/8 to 1-7/8 inches standard |
| Bore Hole Diameter | 2-1/8 inches |
| ANSI Standard | ANSI/BHMA A156.2, Series 4000 |
| ANSI Function | F82 |
| Cycle Rating | Grade 1 (exceeds industry cycle standards) |
| Lever Rotation | Vandlgard free-spinning when locked |
| Rose Diameter | 3-9/16 inches |
| Locking Mechanism | Push/turn button |












