Gratnells Callero Tall Maker Store Adder Unit with 12 Shallow & 15 Deep Trays – Jolly Lime

The Gratnells Callero Tall Maker Store Adder Unit is a modular classroom storage solution designed to maximize organization while minimizing floor space. Featuring 12 shallow and 15 deep Jolly Lime trays, it provides high-capacity storage for STEM materials, maker supplies, robotics components, and everyday classroom resources. Its durable steel frame and antimicrobial Gratnells trays help create a safe, organized learning environment.

Why Educators Use It

Schools, makerspaces, libraries, and STEM labs rely on the Callero Custom system because it adapts to evolving classroom needs. The modular design makes it easy to expand storage over time while keeping learning materials accessible, organized, and ready for hands-on instruction.

Key Features

• Includes 12 shallow and 15 deep Jolly Lime trays for flexible classroom organization.
• Heavy-duty steel frame supports up to 250 kg of evenly distributed storage.
• StopSafe runners help prevent trays from being accidentally removed for improved classroom safety.
• Antimicrobial polypropylene trays are durable and easy to clean.
• Compact 16.9-inch frame depth provides high-density storage without taking up valuable classroom space.
• Modular Callero Custom design allows additional storage frames to be added as needs grow.

Classroom Applications

• Organize robotics, engineering, and STEM project materials.
• Store maker tools, electronics, and fabrication supplies.
• Manage classroom manipulatives and shared learning resources.
• Create organized storage systems in makerspaces, libraries, and innovation labs.