DefendEd™ School Safety Security Glazing

Designed for interior and exterior use in K-12; Higher Education; Childcare Facilities; Preschools/ Daycare; and general school safety, DefendEd™ is proprietary, attack-resistant security glazing that’s tested to meet top security standards, and available in combination with fire-rated and ballistic glazing for added protection.

McGrory’s DefendEd™ school safety security glazing product line is rigorously tested for performance and standards: Forced Entry Performance: ASTM F1233, Class 1.0 , UL 972 Burglar Resistance, HP White 5-aa1, Duration 14m / 47s; ANSI Z97.1 (Safety Cat I & II), ASTM C1036, ASTM C1172, ASTM C1048 . Choose from various thicknesses to accommodate retro-fit/ new construction applications and multiple dimensions, including custom cutouts.

Working with the best fire-rated suppliers in the industry – AGC, Forster, and SCHOTT – we can provide fire-rated combinations to meet multiple requirements, as well as bullet resistant glazing options, one-way vision solutions, and other decorative elements to support student and staff wellness. Safely and effectively meet multi-performance code requirements while maximizing both safety and aesthetic design considerations.

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Explore DefendEd™ Security Glazing

DefendEd™ attack-resistant security glazing is created for use in K-12 & Higher Education facilities, and similar buildings.


Why Choose McGrory?

We offer customized support to fit your needs, and dedicated staff with over three decades of security glazing and interlayer/ lamination experience. Callemail, or submit a quote request online. We will get back to you within 24 hours.

Technical Details

Product NameForced Entry Performance Applicable StandardsMinimal Thickness (inches)Nominal Thickness (inches)Max Thickness (inches)Weight
DefendEd™ASTM F1233, Class 1.0, UL 972 Burglar Resistance, HP White 5-aa1, Duration 14m / 47sANSI Z97.1 (Safety Cat I & II), ASTM C1036, ASTM C1172, ASTM C10480.39”0.43”.46”4.3 lbs/ft²
DefendEd™ PlusASTM F-1915 Grade 4 (10 minutes of physical attack), HP White TP-.0500.03 Level 1, HP White TP-.0500.03 – .38 Special (3 shot) Spall / No Bullet PenetrationANSI Z97.1 (Safety Cat I & II), ASTM C1036, ASTM C1349, ASTM C10480.520”0.570”0.620”5.216 lbs/ft²
DefendEd™ LiteASTM F1233, Class 1.0, UL 972 Burglar ResistanceANSI Z97.1 (Safety Cat I & II), ASTM C1036, ASTM C1172, ASTM C10480.284”0.310”0.334”3.619 lbs/ft²

Innovation. Experience. Grit.

We are McGrory Glass. Family-owned since 1984. Over 250,000 SF of manufacturing & fabrication facilities in 2022.

The McGrory Glass Defend™ line of life-safety glazing offers a wide selection of performance-related, threat-protection, security glazing and fire-rated products that protect against fire, human invaders, and ballistic weapons.

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FireDefend Testing Mid Test UL ASTM E Fire Resistive Security Glazing Testing

Looking for fire-rated glass and framing systems? McGrory is partnered with the best fire-rated suppliers in the industry – AGC, Forster, and SCHOTT.

Fire-Rated Glass, Glazing & Assembly Systems

Meet the Team

Chad Snyder Director of Security Products / Senior Specification Consultant Email Chad
Erin Bellis Senior Architectural Sales Rep
Dan Laporte Director of Laminating Sciences
Ben Haigh Senior Director, Fire-Rated Division
A About McGrory Glass Solar Powered

McGrory Glass Adds 76,000 Square Feet of Fire-Rated and Security Fabrication Capabilities

The family-owned and operated glass company recently opened a dedicated 76,000-square-foot facility to fabricate fire-rated and security glass, glazing, and framing systems for projects across North America, bringing their total to three facilities and over 250,000 square feet of production space.

D About McGrory Glass People Founders Mary and John McGrory

We Are McGrory Glass: Family, Innovation, Experience, Grit

We thank our clients, our team, and our partners for four decades of growth, and look forward to many more. Please join us in celebrating the past, present, and future – together.

Blake Whitcombe and Children at McGrory Glass Aston PA Location

Thankful for 35 Years of McGrory Memories & Looking to the Future

We’re also thankful to our founders, John and Mary McGrory, and to our staff, many of whom have grown up with the company. In fact, seven of John and Mary’s children work at McGrory Glass today. We love to say, “Everyone here is family!”

We have the capabilities, equipment, & experience to be your go-to single source.