Steel Security Windows: UL752/NIJ III BR & Blast

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UL NIJ Tested Protection Against Ballistic Rounds with Design Flexibility

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Steel Ballistic Resistant (BR) Windows deliver laboratory-tested protection against rifle-level ballistic rounds in a complete system that offers minimal sight lines and design flexibility. Available in a wide variety of performance ratings for both fixed and teller window applications, they can also be engineered to resist significant blast loads with a “no hazard” rating. Ross steel window designs utilize a welded, structural steel frame engineered for high strength and maximum durability.


Design Features

Ross Steel Ballistic Resistant Windows offer an ideal solution where the call for high ballistics resistance is combined with requirements for minimal frame profiles or unique shapes. The WSFV-N-B series are tested to meet multiple firearm threat levels including UL 752 (Levels 5 & 8), NIJ III, 7.62 x 39 rounds and .50 caliber balls. The WSFV-N-EX is engineered to resist blast loads up to 40 psi / 300 psi-ms and beyond. Custom designs are available to meet combined blast and ballistic threats.

Fabricated as a complete system, typical construction includes a heavy-duty structural steel frame, laminated/insulated glazing, glazing stops, ballistic protection bars, interior/exterior trim and a plate or tube-type sub-frame. An optional FE/BR deal tray can be added for high-security document transfer needs. Ross DOS certified Deal Tray offers 15 minutes of forced-entry and ballistic protection, and its 2” deep stainless steel transaction tray provides ample room for the passage of 100+ sheet documents.

All windows are factory glazed and can be installed as a single unit or ganged together to form a unitized “window wall.” Numerous glazing options are available along with interior and exterior trims, which improve installation flexibility and come in a wide range of finish types.

The WSFV-N-B series and WSFV-N-EX offer architects and end users:

  • Anti-Terrorism Level Security – where the threat of rifle-level ballistic and high level blast attacks exist
  • Minimal Sight Lines – where a limited view of the window’s framing system is an important component of the overall building design
  • Architectural Design – the ability to form numerous shapes and configurations facilitates integration with other architectural elements
  • Design Flexibility – where architectural or security objectives require the use of large or ganged window systems
  • Durability – galvanized, structural steel provides maximum durability and low maintenance

In addition to engineering the full window and sub-frame system, Ross has the unique ability to customize styles and finishes to provide architects and engineers with a wide range of flexibility in creating or preserving the aesthetics of new and existing structures.


Steel Ballistic Resistant Widows provide rifle-level ballistics protection for prominent and mission critical buildings, guard houses, control rooms, cashier areas, executive offices and anywhere the highest levels of protection, aesthetics and visibility are important considerations. Engineered blast resistance may be added for more comprehensive protection.

Ross Technology has manufactured thousands of window systems. Our customers include some of the largest government agencies, general contractors, integrators and corporations in the world. You will find our products in a broad range of industries including:

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Technical Data

The strength of Ross Steel Windows can be seen in their engineered, structural design and years of successful service in the field. The frame’s welded construction offers maximum durability and threat resistance as demonstrated by tens of thousands of units installed over the past three decades.

Engineered to withstand multiple impacts, Ross windows can be constructed and certified as large as 5 feet by 10 feet, with larger options available upon request. A wall of conjoined windows can be assembled to increase the architectural impact and non-standard shapes can be designed to further enhance the aesthetic appeal.

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  • Standards & Testing
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  • Availability, Cost & Warranty

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