Harry wrote:
On Fri, 29 Apr 2005 09:23:51 +0100 (BST), "Dave Liquorice"
wrote:

On Fri, 29 Apr 2005 08:58:28 +0100, Harry wrote:

Finally spread some 5-10mm gravel and make it level with the
grass.
Level/pack it and lay the "bearers" down onto the gravel. Then
pop
your shed onto the bearers.

I did this to the kids playhouse (a converted 8x6 shed)

This is fine for place that don't get even moderate wind.
Otherwise
you may find that this happens:

http://www.howhill.com/weather/view....2005&m=04&d=28

Bear in mind that there is, er was, an eves level wall right
against
one side of the shed and a 2'6" high one against the end. Not many
gardens get the full whack of an F7 or F8 though (sustained wind
speed over upper 30's low 40's mph).

Now trying to think of cheap and easy was of stopping it happening
again, 5 years ago we lost the roof. That landed on the wall the
far
side of the road behind the shed in the above picture. But that
was
in a real storm, F10 (50mph sustained, gusting to to upper 60's
mph).

4 bags of sand inside the shed (one at each corner)

2 nylon straps over the top of the shed and tie the end of each
strap
to a bag of sand or a rock.

Or set the shed on a concrete-block base (no absolute need for
mortar), and drill, plug, and screw (brass for choice) into the
blocks. The blocks can be dug in, or just sit on a prepared surface

I lost (very dangerously) a shed roof in the hurricane, but that was
my own fault for fixing the sheets too lightly. I think the kind of
roof you get with sheds you buy should have fixings at right angles
to one another so it can neither lift nor shift.

--
Mike.