Built several sheds over the years and installed put together sheds over the years.
Make a frame 2x4 s or 2x3 s pour concrete and level wa la your done no rot, no bugs, no animals.
Of course you should secure the shed to the slab with through bolts or some other means, its best to have the hold downs when your pouring to embed in concrete.
Remember it is only a shed, don't worry about movement I have never had problems in 40 years, besides if there is movement the entire slab will move. Don't kill yourself for a place to store your lawn mower. Now an addition to a house or garage is a different story.
Hi - I'm also installing this same shed and was curious - the manual calls for concrete or patio style surface. Pouring concrete is out of the question for me, but I was considering using concrete paving slabs, the 24" x 24" variety ontop of a bed of 3/4 crush or road base. Would this be any better than using PT 2 x 6 ladder frame with 1/2" OSB?
For those that own/installed these sheds - any secrets or "what would you do differently"??
I have a similar situation, but mine's a little different and I could really use some advice. I want to install my shed on the side of my house near the cinder block wall. The ground here is all concrete, but it slopes towards built in drains.
I'm assuming that I would need to level the surface somehow in order to install one of these sheds. How should I do it though? Since the ground is already concrete, it seems like a wood frame with gravel might be overkill.