Gratnells Callero Plus Treble Storage Cart with 12 Deep Grass Green Trays

The Gratnells Callero Plus Treble Storage Cart is a high-capacity classroom organization solution designed to keep STEM materials, maker supplies, and teaching resources organized and accessible. Featuring 12 deep Grass Green trays, this cart provides generous storage while maintaining a compact footprint that moves easily throughout classrooms, labs, libraries, and makerspaces.

Designed for busy learning environments, the Callero Plus Treble Cart helps educators prepare, transport, and organize materials for hands-on lessons. Its smooth-rolling design, integrated safety features, and durable steel frame make it ideal for daily use in schools and educational organizations.

Why Educators Use It

Keeping classroom resources organized improves lesson flow and maximizes instructional time. The deep removable trays support STEM investigations, engineering projects, robotics components, science equipment, and classroom supplies, while the mobile cart allows materials to move wherever learning happens.

Key Features

• Includes 12 deep Grass Green polypropylene storage trays for high-capacity organization.
• Durable silver steel frame supports up to 250 kg of distributed weight.
• StopSafe runner system helps prevent trays from being accidentally pulled completely out.
• Large locking casters provide smooth mobility with the option for static feet installation.
• Compact treble-column design delivers maximum storage within a small classroom footprint.
• Flat top surface can serve as an instructional workspace or resource display area.

Classroom Applications

• Organize STEM kits, robotics parts, and engineering materials.
• Store science lab equipment and classroom supplies by lesson or subject.
• Create mobile makerspace or innovation carts for flexible learning environments.
• Support collaborative project-based learning with portable shared resources.