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I am installing a Resin based shed Ketter Cortina 9x7in my backyard on level ground. I want to build the shed base using 24x30 inch concrete paver slabs. to build the base I am planning to.

  • remove the grass and dig a 4 inches
  • lay a weed control sheet
  • add gravel
  • compact it
  • put the pavers on the gravel.
  • assemble the shed on the pavers

The issue with my plan is that the pavers are only 2 inches thick and I want the shed to be about 5 inches off the ground. How can I raise the ground under the pavers by 3 to 5 inches so that my shed will be higher than the rest of the lawn?

I thought about putting a some pressure treated wood 4x4 perimeter to contain gravel and raise it 4 inches above the rest of the lawn then put the paver salbs on to raised gravel bed. However, I am concerned about wood rotting after a few years and having to spend time fixing the base.

I don't have any landscaping experience this my first DYI backyard project, so I am looking for simple approaches. I have thought of two ways to do this but I have not seen anyone else online mention these so they probably don't work.

  • Put two pavers on top of each other
  • dig a 6 inch deep, 10 inch wide perimeter trench, put 2 inches of gravel in it, then place an 8x16x8 cinder block and fill the shallow trench with gravel. the cinder blocks will stick 4 inches above the ground and form a perimeter so I can fill the inside with gravel, then put the pavers on top of the gravel.

Can the above two approaches work, what are the downsides of each approach, is there a standard way to do this?

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    You don't need landscape fabric ("weed control sheet") under pavers if you use 3-6" of compacted base gravel, especially with a building on top of the pavers. Landscape fabric does nothing to deter weeds over the long term anyway, even in a garden.
    – Jurp
    Commented Aug 21, 2021 at 2:27
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    Why do you need the shed base to be higher than the lawn? Are you putting in some slabs around the shed, particularly where the door is?
    – Bamboo
    Commented Aug 21, 2021 at 12:55
  • Just want to keep water out if we get a big rainfall and when the snow melts.
    – ams
    Commented Aug 21, 2021 at 16:36
  • ground-contact rated PT lumber shouldn't rot out in a few years...
    – dandavis
    Commented Aug 24, 2021 at 20:31

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That should work but a lot of work. I would just put something like sand on the grass, then the paver slabs , then the shed. What I did for my 8 X 12 shed is rake the sandy soil and weeds flat and set house bricks on the ground to make a porous floor . I have aquariums in the shed and occasionally run gallons of water on the "floor" , it just disappears. It has worked for 20 years, never a weed. Although I never get freeze/thaw in the shed. We did have a 40 inch rain (3 days) which was no problem.

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  • My own shed had a similar construction method, except that the owners used about 6" of base gravel piled on the grass. The shed came with its own floor, however.
    – Jurp
    Commented Aug 22, 2021 at 0:17

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