I hope you don't mind me updating this post?
I bought three of the above galvanised shelving and thought I would try it. It is excellent. It can be bolted together in all sorts of ways , you can put it one in front of the other and make a two shelf staging 2'x 2'4" and then you can bolt extra ones together to make a long table to work on and you can reverse the shelves to make trays for capillary matting. It is also strong enough to hold 40kgs It is very versatile, and I don't think it would take long to take down and store, but above all with it being galvanised I will be able to put it outside in Summer when I need the room for toms. and cucumbers etc. I have bought another 6 and also some of the people on the site have asked me to get them some.
By the way they were only £8.50 each. I thought when they told me the price there would be VAT added, but it was already included.
Rosemary