
Classrooms
Help create a safer learning environment by providing attack resistance at the primary point of entry while maintaining code compliance and daily functionality.


Award-winning system tested to rigorous forced-entry standards.
First door system certified to ASTM F3561
Recognized with multiple architectural and security awards
Validated for real-world performance requirements
The Aspiro® Series Defendr Door System™ has earned top industry accolades for its advanced design and performance. These awards reflect our commitment to safety, durability, and innovation—ensuring every opening delivers peace of mind.

Architectural Products 2025 Product Innovation Award – Celebrating forward-thinking design that sets a new standard for architectural doors.
Campus Security Today 2025 Secure Campus Award – Honoring solutions that protect students, faculty, and staff in educational environments.
Security Today 2025 Product of the Year – Recognized for outstanding contribution to security technology and product excellence.
Every component of our attack-resistant interior door system is designed to help protect students and staff inside the classroom.
Learning from the past to create safer schools
Rising mental health challenges and incidents of violence have reshaped school safety needs. Working with security experts, we developed the Aspiro® Series Defendr Door System™—a practical solution that adds layered protection to slow forced entry and strengthen interior safety where it matters most.
Security should be effective without feeling disruptive to the learning environment. The Aspiro® Series Defendr Door System™ delivers integrated, affordable protection that balances safety, durability, and design. Attack-resistant glass preserves natural light, while laminate, painted, or wood veneer finishes maintain welcoming, modern interiors across a wide range of school spaces.

Help create a safer learning environment by providing attack resistance at the primary point of entry while maintaining code compliance and daily functionality.

Enhanced protection supports vulnerable occupants, offering added security without compromising accessibility, visibility, or a supportive learning atmosphere.

Large, high-traffic spaces benefit from durable, reinforced assemblies that provide security during school hours and after-hours events.

Attack-resistant assemblies help safeguard students and staff in open, collaborative environments while maintaining design continuity and glazing options.

Integrated security supports technology-rich spaces that often serve multiple functions, balancing visibility with validated protection.

Front-office and administrative areas gain an added layer of defense at key control points, supporting staff safety and secure visitor management.
Reinforce critical vertical circulation paths, providing verified attack resistance at key egress points while maintaining life safety and code compliance.
All components of the Forte Opening Solutions Attack Resistant Door System — metal frame, attack-resistant glass, ANSI/BHMA Grade 1 hardware, solid-core wood door and metal vision kit— work together to provide the highest level of security in new construction or security-update retrofit projects. While Forte Opening Solutions Attack Resistant Doors can be installed in existing frames, the full system is required for the greatest degree of safety.
To view the system components, click on the components to right to reveal full descriptions.

The Aspiro® Series Defendr Door System™ is engineered from integrated components that work together to deliver strength, security, and design flexibility. Explore the available options to see how each configuration can be tailored to meet your project’s performance and aesthetic requirements.
Not all security doors are evaluated the same way. To simplify specification and clarify performance expectations, our portfolio is organized into three distinct security designations.
ASTM Certified
Tested to meet the ASTM F3561 Standard Test Method for Forced-Entry Resistance of Fenestration Systems After Simulated Active Shooter Attack.
Provides verified, industry-standard protection for high-security applications.
Certified for Levels 3 & 5
FTD-SA Tested
Tested using the FTD-SA test methodology, which served as the foundation for ASTM F3561.
Not formally certified due to the absence of an official standard at the time of testing.
Provides a high level of security with proven performance
Tested to Level 4
Security Enhanced
Not tested or certified but includes security upgrades such as attack-resistant glass and security-grade hardware.
Offers enhanced protection beyond standard doors without carrying the Aspiro Defendr label.
Ideal for applications requiring added security without formal testing requirements.
Get the Defendr eBook and connect with our team to learn more about attack-resistant door systems for education environments.