Gratnells Callero Custom Tall High-Store Adder Unit with 24 Deep Trays – Sunshine Yellow

The Gratnells Callero Custom Tall High-Store Adder Unit is a modular classroom storage solution designed to maximize organization while using minimal floor space. Featuring 24 deep trays and a durable steel frame, it helps educators keep STEM materials, classroom supplies, and project resources accessible, secure, and neatly organized. As an adder unit, it connects to an existing Callero Custom starter frame to expand storage capacity as learning environments grow.

Why Educators Use It

Flexible storage is essential in STEM classrooms where equipment, consumables, and student projects need to remain organized and easy to access. This high-capacity unit supports efficient classroom management while creating a safer, more organized learning environment that encourages student independence and resource sharing.

Key Features

• Modular adder unit expands an existing Callero Custom storage system.
• Includes 24 deep trays for high-capacity classroom organization.
• Compact footprint provides maximum storage without taking up valuable learning space.
• StopSafe runners help prevent trays from being pulled out too far for added classroom safety.
• Durable steel frame supports up to 250 kg with trays rated for up to 5 kg each.
• Rounded frame design minimizes sharp edges for child-friendly learning environments.

Classroom Applications

• Organize robotics, engineering, and STEM classroom materials.
• Store science lab equipment and project supplies.
• Create expandable makerspace and innovation lab storage systems.
• Manage shared classroom resources in libraries and collaborative learning spaces.