Gratnells Callero Plus Treble Cart with 12 Deep Translucent Trays

The Gratnells Callero Plus Treble Cart is a high-capacity mobile storage solution designed to keep STEM classrooms, makerspaces, and learning environments organized and efficient. Featuring 12 deep translucent trays, this cart provides generous storage while allowing educators to quickly identify classroom materials. Its durable steel frame, smooth-rolling casters, and spacious top surface make it ideal for daily instructional use.

Why Educators Use It

Whether supporting STEM labs, engineering projects, science investigations, or makerspace activities, this cart helps teachers organize supplies and transport materials between classrooms with ease. The translucent trays improve visibility of stored items, while the compact treble-column design maximizes storage capacity without taking up excessive floor space.

Key Features

• Includes 12 deep translucent polypropylene trays for high-capacity classroom storage.
• Treble-column design provides approximately 33% more storage than standard trolley configurations.
• StopSafe runner system helps prevent trays from being pulled out too far for added classroom safety.
• Heavy-duty steel frame supports up to 250 kg with trays rated for up to 5 kg each.
• Supplied with both braked casters and static feet for mobile or stationary installation.
• Large ergonomic handles and smooth-rolling casters allow easy one-handed movement between learning spaces.
• Flat top surface offers additional workspace for demonstrations or displaying instructional materials.

Classroom Applications

• Store robotics, engineering, and STEM project materials.
• Organize classroom supplies by lesson, subject, or student group.
• Transport science lab equipment and makerspace resources between classrooms.
• Create flexible mobile storage for collaborative learning environments.
• Support makerspaces, libraries, innovation labs, and STEM centers.