Project Location: Southeast Asia
Project Type: Public Educational Facility - Classroom Buildings
A newly developed educational campus required a reliable and safe door hardware solution for its classroom buildings. The project covered multiple teaching areas with high daily usage frequency.
The project contractor and school management defined the following key requirements:
Controlled access from the outside while allowing free exit from inside
Smooth and quick operation for teachers and students
High durability to withstand frequent daily use
Compliance with fire door and safety standards
Consistent and clean appearance across all classrooms
During product selection, several practical challenges were identified:
Standard locks could not balance security and emergency exit requirements
High-frequency use required long-lasting internal components
Large number of doors required consistent specification
Need for compatibility with multiple door types
D&D supplied the Classroom Mortise Lock (DDML015):
Classroom Function Design
Outside access controlled by key, inside always allows immediate exit
High Durability Structure
Tested for up to 200,000 cycles
Fire Door Compatibility
Suitable for fire-rated doors
Premium Stainless Steel Components
SUS 304 parts ensure durability
Flexible Specifications
Available in multiple backset options
After installation across the campus, the client reported:
Improved classroom security
Safe and quick exit function
Smooth performance under intensive use
Reduced maintenance frequency
Consistent hardware standard
This solution is widely used in:
Schools and universities
Training centers
Office buildings
Government facilities
Public buildings
D&D provided a safe, durable, and standardized door hardware solution.
This project demonstrates D&D Hardware’s capability to deliver scalable solutions for public buildings.
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