Garage/shed suitable shelves/racking (Pewsham SN15)

Hi all, I’m on the look out for some freestanding medium-duty racking you may have surplus to your requirements. Plan is to put plastic crates on it. Not too fussed about width (3-4ft perfect) 4-6ft high and ideally 1ft or so deep.

Not too worried about colour or material, just need to create the space! Thank you in advance!