Looking for a large shed to house a motorbike and a few bikes.

Any recommendations for something robust and secure?

Given my recent experience of a small, “standard” shed, get yourself to a local timber yard where, for not much more than B&Q money you can get something far more robust and properly treated, so it will last…

Or if you’re fairly handy make one yourself. It’s surprising how easy they are to make from a combination of CLS and shiplap. Definately find a local independent timber yard. Wickets quoted me £650 for materials for an 8ft x 8ft shed, local independent yard quoted £400

My standard answer after being stung on a crap shed it build one out of this stuff:

Stockwall / Dungwall Cladding

If you are in the SW this place is cheap: http://www.molevalleyfarmers.com/mvf/info/farming/Dungwalling

2″ thick is going to be pretty secure!