Gratnells Callero Tall Maker Adder Storage Unit with 28 Shallow & 7 Deep Kiwi Antimicrobial Trays (Silver Frame)

The Gratnells Callero Tall Maker Adder Unit is a high-capacity classroom storage solution designed to keep STEM materials, tools, and learning resources organized while maximizing floor space. Featuring a durable silver steel frame with 28 shallow and 7 deep Kiwi antimicrobial trays, it provides flexible storage for busy classrooms, makerspaces, libraries, and innovation labs.

Its modular design allows schools to expand storage as programs grow, while child-friendly safety features help create an organized and accessible learning environment that supports independent student use.

Why Educators Use It

Teachers and STEM coordinators rely on the Callero storage system to organize equipment, consumables, robotics components, engineering supplies, and classroom resources in one accessible location. The modular frame integrates easily into flexible learning spaces while antimicrobial trays and safety-focused runners support daily classroom use.

Key Features

• Includes 28 shallow and 7 deep Kiwi antimicrobial storage trays.
• Tall treble-width steel frame with durable silver finish.
• Modular design expands with additional Callero storage units.
• StopSafe runners help prevent trays from being fully removed during everyday use.
• Compact footprint provides high-capacity storage without taking up valuable classroom space.
• Supports up to 250 kg frame load with trays rated for up to 5 kg each.

Classroom Applications

• Organize STEM lab equipment and engineering materials.
• Store robotics parts, coding kits, and makerspace supplies.
• Manage classroom resources for collaborative learning activities.
• Create accessible storage in libraries, innovation labs, and media centers.