Clive, save Chas struggling, my small Airtop measures 2140 mm long, 1260 mm wide if that helps.
Andy
Thanks Andy!

Excuse my ignorance, and it may seem a daft question, but if my ARB rack "basket" internal size is equal to or greater than those dimensions (with say a small clearance of 10mm each side/front & back, for example) would I be able to operate the Air Top, meaning open/close it and use it?
I've only ever seen them mounted to a flat rack and I accept that the basket rack is far from ideal, but I'm trying to save removing the ARB rack each time I mount the Air Top (which I intend to get). It needs four guys to handle it, or a gantry crane...

Thanks in advance....