Gratnells Callero Custom Low-Level 8 Shallow & 4 Deep Tray Adder Storage Unit – Silver Frame with Sunshine Yellow Trays

The Gratnells Callero Custom Low-Level 8 Shallow & 4 Deep Tray Adder Unit expands existing Callero storage systems with flexible, high-density organization for classrooms, makerspaces, and STEM labs. Its compact footprint provides generous storage while keeping learning materials accessible, organized, and ready for everyday instruction.

Why Educators Use It

Designed for busy educational environments, this modular storage unit helps schools organize classroom resources, STEM equipment, robotics components, art supplies, and teaching materials without sacrificing valuable floor space. The combination of shallow and deep trays supports efficient organization for supplies of varying sizes while promoting independent student access.

Key Features

• Includes 8 shallow trays and 4 deep trays for versatile classroom storage.
• Low-profile modular adder unit expands existing Callero Custom storage systems.
• Compact 16.9-inch depth maximizes storage while minimizing floor space.
• Durable steel frame with antimicrobial polypropylene trays designed for daily educational use.
• StopSafe runners help prevent trays from being fully removed, improving classroom safety.
• Smooth, rounded frame design minimizes sharp edges in student learning environments.

Classroom Applications

• Organize robotics, engineering, and STEM project materials.
• Store science lab supplies and classroom equipment.
• Create accessible makerspace storage for shared learning resources.
• Keep art, math, and literacy materials neatly organized by activity or grade level.