Gratnells Callero Custom Low Level 6 Deep Tray Library Adder Unit – Silver Frame with Sunshine Yellow Trays

The Gratnells Callero Custom Low Level 6 Deep Tray Library Adder Unit is a modular classroom storage solution designed to expand existing Callero Custom storage systems. Featuring six deep trays in Sunshine Yellow and a durable silver steel frame, it provides organized, high-density storage while maintaining a compact footprint that fits comfortably into modern learning environments.

Ideal for libraries, STEM labs, makerspaces, classrooms, and resource centers, this low-profile unit keeps books, learning materials, equipment, and classroom supplies easily accessible. Its child-friendly design, antimicrobial trays, and StopSafe runners help create a safer, more organized learning space that supports everyday classroom activities.

Why Educators Use It

Schools and educators rely on modular storage that can adapt as learning spaces evolve. This adder unit extends existing Callero Custom configurations, making it easy to create flexible storage systems for STEM resources, library collections, classroom supplies, and collaborative learning environments while maximizing available floor space.

Key Features

• Includes six deep Gratnells trays in Sunshine Yellow for high-capacity storage.
• Expands compatible Callero Custom modular storage systems.
• Compact low-level design fits beneath displays, windows, and collaborative workspaces.
• Heavy-duty steel frame supports up to 250 kg with trays rated for 5 kg each.
• StopSafe runners help prevent trays from being accidentally removed.
• Smooth, rounded frame design improves safety in student learning environments.
• Antimicrobial polypropylene trays are durable, easy to clean, and built for daily classroom use.

Classroom Applications

• Organize STEM kits, robotics components, and engineering materials.
• Store library books, reading resources, and literacy supplies.
• Create flexible storage for makerspaces and innovation labs.
• Keep classroom manipulatives, art supplies, and teaching materials neatly organized.