Does wire mesh need to be fixed to the rack?

There is no clear recommendation in the codes for wire mesh.

Design codes ask for safety bars to be fixed to the beams (front and back) because they can move from side to side. There is no clear recommendation in the codes for wire mesh. We know that although waterfall type wire mesh will not laterally move and cannot simply fall of the rack, it is better to attach them to beams as they sometimes get lifted by pallets during operation.