A mate of mine wants a sturdy, portable type garage. The sort of thing that can easily be put up by a couple of people in a few hours.

Seen loads of 3m x 6m on Ebay, but he's looking for something more like double garage size - he already has a concrete base to put it on, hoping to get maybe 5 years plus out of it b4 it starts falling to bits

Machine mart have Clarke's ones at sensible prices, does anyone have experience of their durability, or any other suggestions?

what about big caravan awnings? (the thicker material ones, not the very thin ones. some of those last a number of years on permanently sited caravans.

How about an ex Army Type tent?

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ebay is full of ex council garages cheap they take a bit of putting up but if the base is there already most of the jobs done get a double wide fit to your base with the adjustable size easy and then when finished sell it again on the bay . larger cost outlay but fit for purpose longer then pays you back