I've a huge shed/garage but it's only a wooden frame thing & not particularly secure.
Seeing as i've now 3 expensive bikes to store & they are currently occupying my kitchen i was thinking about buying one of those steel boxes for motorbikes and bolting it to the concrete floor of my garage.

How much do they go for and are they big enough to fit three bicycles in?

No idea, but sounds like a good idea. Will watch this thread closely.

Quite a lot – take a look at Trimetals stuff, it is pretty decent and they do some large ones that could fit a few bikes in.

http://www.trimetals.co.uk/motorcycle-storgage.php?m=3&g=8

Hmm, found one from asgard that goes for £449 for up to 4 cycles.

Steep, but considering how much the bikes are worth – cheaper than building a brick garage as well!

decent ground anchors and chains would be cheaper. Try Pragmasis – I know the guy that runs the company and he only sells the best products (he's paid for a lot of independent testing for example)

smurf