[Ian Robinson]

Looking at BillyD's construction . I like the garage roller rail and roller bearings idea a lot.

Unless I hire someone , I'll be working by myself . Any reason stopping the roof from being constructed on top of the rails and rollers and some kind of timber box frame ? (So long as the roof structure can be "locked" in posstion for assembly and cladding , by a couple of strong coach bolts each side say.)

I also noted that he had 5 roof trusses for a 4m long shed , is that overkill , I would have thought not more than 3 trusses would suffice for roof that length ?

The roof sheets will add considerable structural strength when attached as well as the two bracing times which will help stiffen it up along with the timbers the sheets will be screwed to.(I think ... I cheated a bit and looked at how my garage roof is assembled, it stood up the Newcastle Cyclone in June 2007 no problem).

See my proposed roof strut & base layout attached. How's that look ?