"SMS" wrote in message
...
My sister in-law bought a plastic shed at Costco (Keter Bellevue) with
floor dimensions of 100.5" x 80.5".
("http://outstanding-keter.co.il/files/17185841_a.pdf")

Someone at Home Depot said that she should set it on a pad of concrete
blocks that sit on a base of sand and gravel, all of which she ordered and
had delivered.

I thought this was a pretty bad idea for a plastic floor shed, and that it
will be difficult to get all those blocks arranged into a level, even,
platform. I would have built a base out of pressure treated plywood
sitting on a frame of 2"x6" pressure treated studs, and set that on level
ground without using any gravel or sand.

But now that she's bought all that material, is practical to sit it on
blocks, placed in gravel, even if it weren't an optimal arrangement? I
also thought of putting pressure treated plywood on top of the concrete
blocks and screwing the plywood to the bocks, but that's a lot of
screwing.

The guy at HD just recommended a way that he knew SHE could do with a shovel
and rake...Besides it is a pretty common way to do it and that way was an
option in the assembly instructions...Perhaps if YOU had been with her he
would've recommended the wood floor , also an option in the directions....Or
perhaps with the money she has spent on that "plastic shed " and floor she
could have bought the materials and you could have built her a real shed...