3m Extendable Aluminium Road Barrier (BAR005) /wp-content/uploads/2018/09/Richmond-Bread-Dollies-web.pdf the wheel overall width is

the wheel overall width is 30mm and can be purchased separately (NY3321)

with a total safe working load of 12t when used as a complete set

stacked or awkward items where a standard straight frame can slip or mark the load

The part number for this castor is S5080D

3m Extendable Aluminium Road Barrier (BAR005) /wp-content/uploads/2018/09/Richmond-Bread-Dollies-web.pdf the wheel overall width isThis 3m expanding safety barrier is a practical way to block off hazards, manage foot traffic, or mark temporary work zones without needing bulky fixed fencing. It folds down to a compact 250mm for storage and transport, then expands out to 3m when you need a clear visual barrier in corridors, loading areas, car parks, event spaces, and maintenance zones. The high visibility yellow and black finish helps it stand out quickly, supporting safer movement