Gratnells Callero Tall Maker Starter Storage Unit with 28 Shallow & 7 Deep Royal Blue Trays

The Gratnells Callero Tall Maker Starter Unit is a high-capacity classroom storage solution designed to keep STEM learning spaces organized, efficient, and ready for hands-on instruction. Featuring a durable silver steel frame with 28 shallow and 7 deep Royal Blue trays, it provides flexible storage for tools, robotics components, maker supplies, science materials, and classroom resources while maximizing floor space.

Designed specifically for educational environments, the modular Callero system helps schools create organized learning spaces that can expand as classroom needs evolve. Its slim footprint, child-friendly design, and secure tray runners make it ideal for busy classrooms, makerspaces, libraries, and innovation labs.

Why Educators Use It

Teachers and STEM coordinators rely on the Callero system to simplify classroom organization while keeping frequently used materials accessible. The combination of shallow and deep trays supports a wide variety of supplies, helping students work more independently while maintaining an orderly learning environment.

Key Features

• Includes 28 shallow trays and 7 deep Royal Blue trays for flexible supply organization.
• Heavy-duty steel frame supports up to 250 kg of distributed load.
• Compact 16.9-inch depth maximizes storage without sacrificing valuable classroom space.
• StopSafe runners help prevent trays from being pulled out too far for added classroom safety.
• Modular Callero design can be expanded with additional compatible frames.
• Ideal for storing STEM equipment, maker materials, science supplies, and classroom resources.

Classroom Applications

• Organize robotics, engineering, and maker project materials.
• Store science lab equipment and consumable classroom supplies.
• Create efficient resource stations in STEM labs and makerspaces.
• Support libraries, innovation hubs, and collaborative learning environments.