Gratnells Callero Tall Maker Starter Unit with 28 Shallow & 7 Deep Light Gray Trays

The Gratnells Callero Tall Maker Starter Unit is a high-capacity classroom storage solution designed to keep STEM, maker, and educational resources organized and easily accessible. Featuring a durable steel frame with 28 shallow and 7 deep light gray trays, it helps educators maximize storage while maintaining a clean, efficient learning environment. Its compact footprint makes it ideal for classrooms, makerspaces, libraries, and innovation labs where space is at a premium.

Why Educators Use It

Flexible storage is essential in active learning spaces. The modular Callero system allows schools to organize everything from robotics components and engineering supplies to science materials and classroom resources while supporting student independence through safe, easy-access tray storage. Its expandable design also allows storage systems to grow alongside changing classroom needs.

Key Features

• Includes 28 shallow and 7 deep light gray trays for high-capacity classroom organization.
• Heavy-duty steel frame supports up to 250 kg while maintaining a compact footprint.
• StopSafe runners help prevent trays from being accidentally removed, improving classroom safety.
• Smooth, rounded frame design minimizes sharp edges for child-friendly learning environments.
• Modular Callero system can be expanded with additional frames and storage configurations.
• Ideal for organizing STEM equipment, maker materials, science supplies, art resources, and classroom tools.

Classroom Applications

• Organize robotics kits, coding devices, and engineering materials.
• Store science lab equipment and classroom consumables.
• Create efficient maker and innovation space storage systems.
• Support library, media center, and resource room organization.
• Keep shared classroom supplies accessible for independent student use.