Discover Ryan's Shed Plans and Woodworking Projects (new window)
Discover Ryan's Shed Plans and Woodworking Projects (new window)
Discover Ryan's Shed Plans and Woodworking Projects (new window)

Question about building a shed?

I am planning on building a free-standing lean-to style shed behind my garage, About 6" away from the garage. The shed will be on the S side of garage.
I am planning on building on grade using a 4×4 perimeter w/2×4’s on 2′ spacing under the floor which will be 3/4" plywood.
2×4 for the rest of the wall/roof structure. Will be using T1-11 for the siding and ply for the roof/shingled too.
The question…while some of the literature states that I should sink posts into the ground below frost level I’m in Michigan) I want to lnow if there is any danger to this structure if I just build on grade as planned??

I estimate that the finished shed will weigh around 1500#. Plan on keeping my lawn tractor in there and some tools.
As stated, the shed will be on the S side of the garage and quite protected. It will be 6′ or 8′ by 12′.
Roy, I priced the materials and it is
< $300, home D pricing. The kits start alot higher than that are are substandard materials.
Extra Info, I also have built a freestanding on-grade deck on the E side of my home. It is approx. 2" from the house. Built on all 4×4 framing. Spacing about 30".
Used 2×6 treated decking.

It has remained stable, absolutely no movement for over 12 years.
It is 12’x16′

You need to pour a foundation or a concrete floor for your shed if you don’t the frost over the winter will move the ground and you shed will not be level, causing the doors to be hard to open and close. Built mine on 4×4’s about 7 years ago and it shifted every year. Poured a concrete floor last year and built a new one. New shed on concrete floor held up through last winter without any shifting.

Do build it from scratch, it will cost you about half of what a store bought shed costs and will be better.


4 Responses to “Question about building a shed?”

  1. Roy says:

    You’re not serious. For what your planning go to one of those home depot places and buy one. Way cheaper, way easier.
    References :
    My own backyard

  2. former ebayer says:

    You need to pour a foundation or a concrete floor for your shed if you don’t the frost over the winter will move the ground and you shed will not be level, causing the doors to be hard to open and close. Built mine on 4×4’s about 7 years ago and it shifted every year. Poured a concrete floor last year and built a new one. New shed on concrete floor held up through last winter without any shifting.

    Do build it from scratch, it will cost you about half of what a store bought shed costs and will be better.
    References :

  3. Rick M says:

    As far as a foundation goes I would use concrete blocks that have adjustable all-thread fittings built in. This can be adjusted as frost heaves may occur. You may need to dig out an area for each block, just make sure to tamp the dug areas for a solid compaction. I would also recommend using 2 x 6’s on the floor joists and roof joists. This will allow more support for the snow. And put them at 16" vice 24" for the same reason.
    References :

  4. dusty says:

    Talk with someone who works in construction and lives in your area, DIY projects often seem simple but unless you have some experience they will not turn out as intended. For all the work you are planning to do, doing right the first time would be ideal. Pouring concrete is suggested for a reason, although there may be no danger involved in doing it on the ground as you planned, the chances of it lasting any significant amount of time are slim.
    References :
    Home Builder

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