Gratnells Callero Tall Maker Adder Unit with 28 Shallow & 7 Deep Cyan Blue Trays

The Gratnells Callero Tall Maker Adder Unit is a high-capacity classroom storage solution designed to keep STEM materials, maker supplies, and learning resources organized and easily accessible. Featuring 28 shallow and 7 deep Cyan Blue trays, this modular unit helps educators maximize storage while maintaining a compact footprint. Its durable steel frame and child-friendly design make it ideal for busy educational environments.

Why Educators Use It

Schools, makerspaces, libraries, and STEM labs rely on the Callero storage system to create organized, flexible learning environments. The modular design supports growing classrooms, while antimicrobial trays and StopSafe runners help promote safer, more efficient student access to classroom materials.

Key Features

• Includes 28 shallow and 7 deep Cyan Blue storage trays for organizing a wide variety of classroom materials.
• Compact tall frame provides high-density storage while using minimal floor space.
• Heavy-duty steel frame supports up to 250 kg for long-term classroom durability.
• StopSafe runners help prevent trays from being fully removed, improving classroom safety.
• Compatible with the modular Gratnells Callero system for future expansion.
• Antimicrobial polypropylene trays are durable, easy to clean, and designed for everyday educational use.

Classroom Applications

• Organize robotics, engineering, and STEM project supplies.
• Store science lab equipment and classroom consumables.
• Create efficient makerspace storage for tools and materials.
• Manage shared classroom resources in libraries and innovation labs.