Callero Range

Callero Treble Trolley 24 Shallow Trays

Lightweight and versatile, the Callero Treble Trolley transforms learning spaces. Secure trays ensure safety and swift resource access. Not just storage – it’s a flexible solution to classroom challenges.


The Callero Treble Trolley is a really lightweight, multi-purpose tray trolley system that can be easily and safely moved around the learning space with one hand. The handles are high enough not to require bending down in order to push it and it has no sharp edges or angles for extra safety around children. Lesson time can be maximised with the swift access to trays of pre-prepared resources housed by the Callero trolley, which can be transported effortlessly and with stability due to the large castors. Additionally, the top surface of the trolley can be used to effectively model activities or display resources anywhere in the learning space, ensuring all get a front row view when it really matters. As is expected of Gratnells tray storage solutions, the Callero Treble Trolley maximises storage space on a small footprint, providing 33% more storage space than our standard trolleys with three columns of trays in a choice of depths to suit end-user requirements. It comes with StopSafe runners which further increase safety by ensuring that the trays can only be pulled out to a certain distance preventing accidents and injuries whilst promoting student independence. All of these features combined mean that the Callero Treble Trolley is more than just classroom storage. It is providing a flexible solution to many challenges commonly experienced in the learning environment.

Case Study

Trumpington Park Primary School

We recently supported staff at Trumpington Park Primary School to redesign their current year 4 classroom.

Case Study

Wesley Primary School

How one New Zealand school put community, ethos and culture at the heart of their school design.