Gratnells Callero Custom Low Level 4 Deep & 4 Jumbo Tray Starter Unit – Silver Frame with Sunshine Yellow Trays

The Gratnells Callero Custom Low Level 4 Deep & 4 Jumbo Tray Starter Unit provides a flexible, space-efficient storage solution designed for modern classrooms, STEM labs, libraries, and makerspaces. Its low-profile frame makes supplies easily accessible while combining deep and jumbo trays to organize materials of different sizes in one convenient storage system.

Built around the trusted Gratnells tray system, this modular storage unit helps educators create organized learning environments that support hands-on instruction, collaborative projects, and efficient classroom management. The durable steel frame and smooth-running trays are designed for everyday educational use.

Why Educators Use It

Teachers, STEM coordinators, and library staff rely on this storage unit to keep classroom materials organized without sacrificing valuable floor space. The combination of deep and jumbo trays makes it easy to separate everyday supplies from larger equipment while supporting student independence through safe, accessible storage.

Key Features

• Includes 4 deep trays and 4 jumbo trays for versatile classroom organization.
• Compact low-level design fits beneath displays, windows, or work surfaces.
• Heavy-duty steel frame supports up to 250 kg for long-term classroom use.
• StopSafe runners help prevent trays from being pulled out too far for added safety.
• Compatible with the modular Gratnells Callero Custom storage system for future expansion.
• Antimicrobial polypropylene trays are durable, easy to clean, and ideal for busy learning environments.

Classroom Applications

• Organize robotics, engineering, and STEM project materials.
• Store science equipment, art supplies, and maker tools.
• Create accessible classroom resource stations for independent learning.
• Manage shared materials in libraries, innovation labs, and collaborative learning spaces.