Building shed on slope

[WhiskeyJim]

Anyone have any suggestions or the best way to tackle building a shed/barn on a slope? I want to build a 16x24 yard barn my problem is my land slopes drastically from my current driveway, which is where I'd want the front door of she to be to the back 24 feet down a 4 foot slope. I've measured and it is a good 4ft from front to back. Should I use sonotubes? If so how far can they be out of the ground. Or just use 6x6 post? Would appreciate any advice. Thanks

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[matt_i]

The basic conundrum if you use posts or piers, is how to support the floor? (Definitely you can use a 2x wooden structure).

maybe another way to look at it is: What are you parking inside of it?

If you need a concrete floor that's up to vehicles or stationary tools, then I would say form and pour concrete walls or build them of hollow block but make sure to core-lock with grout and chip out the top-webs to place perimeter steel rebars.

 

[WhiskeyJim]

Not parking any cars etc. Just lawn mower, maybe motorcycle and basic storage. Or possibly a work shop. But not parking any cars etc.

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[WhiskeyJim]

The basic conundrum if you use posts or piers, is how to support the floor? (Definitely you can use a 2x wooden structure).

maybe another way to look at it is: What are you parking inside of it?

If you need a concrete floor that's up to vehicles or stationary tools, then I would say form and pour concrete walls or build them of hollow block but make sure to core-lock with grout and chip out the top-webs to place perimeter steel rebars.

Not planning on parking cars due to the slope. Just lawn mower, motorcycle, normal storage maybe a workshop

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[gsmith22]

you could make it a mini bank barn, frame the floor, and use the space below for storage if the elevation height is great enough. otherwise, frame like a deck brining concrete piers out of ground, pt lumber for framing and then build walls and roof if nothing but a lawnmower is going in there. workshop equipment could get heavy and I would probalby go a different route if that was envisioned (ie slab on built-up grade with perimeter stem wall as a cantilever retaining wall.

 

[landlord30]

I built a 16 x 16 shed in a similar situation you have. I rented a 2 man auger and used tubes. I then placed 6x6 anchor plates on top. If I remember right, I believe the front 3 6x6s are tall enough to accept 2 x10s. The rear set of 3 6x6s are a little over 4 feet long. I used 9 total 6x6s. The garage door is at the low side. I used fill dirt to make a nice transition to the door.

 

[Espo77]

Anyone have any suggestions or the best way to tackle building a shed/barn on a slope? I want to build a 16x24 yard barn my problem is my land slopes drastically from my current driveway, which is where I'd want the front door of she to be to the back 24 feet down a 4 foot slope. I've measured and it is a good 4ft from front to back. Should I use sonotubes? If so how far can they be out of the ground. Or just use 6x6 post? Would appreciate any advice. Thanks

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Dig and pour footings below frost line (for piers)
Choose to use single or double block piers or chimney block
Choose Dry stacked or grouted piers depending on height
Choose Rebar and cement filled center of piers depending on height
Use milk jugs with colored water and plastic tubes for tried and true leveling.
Anchoring should be considered
If you’re gonna get a permit then note any of the above requirements

 

[Jeff95TA]

This is what I built for my shed. I included the basic layout in the attached pdf which includes beam spams, joist spans, and footing sizing (soil dependent).

 

[grissom]

Nicely done ^^^

 

[Renegade1LI]

Not knowing your capability or funds for the project you could build it two story with a walk out basement at the lower elevation & grade level up above. I built a couple like this & really doubles your storage and solves your slope problem, if not you will need to build a step footing to support the structure anyway.

 

[WhiskeyJim]

Nice thank you

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[WhiskeyJim]

This is what I built for my shed. I included the basic layout in the attached pdf which includes beam spams, joist spans, and footing sizing (soil dependent).

Thanks Jeff. This is exactly what I was thinking about doing. Question? What is that notch out on the front post??? Do you not have a post there and you just notched out the beam to fit ??

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[_Stang_]

My 10x16 shed sits on a slope almost identical to what Jeff95TA shows above. I did a 6x6 timber perimeter, about 3-1/2 ft high in the rear with crushed limestone fill compacted every foot. You could park a large vehicle on there without issue although the heaviest thing I have is a ~1000lb zero turn.

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[Jeff95TA]

Thanks Jeff. This is exactly what I was thinking about doing. Question? What is that notch out on the front post??? Do you not have a post there and you just notched out the beam to fit ??

I'm not sure what you mean. If you're talking about the picture, there's a building permit stapled in the front that does a weird optical illusion. It took me a minute to figure out what it was when I found that picture!

The posts shown in the attached pdf are all the same notch in them to support the beams.

 

[markeric]

If you plan on or are required to get a permit for that building, local code will dictate what is required. I built a 12x16 and got a permit, and the county required me to use J-bolts through the sill plate set in concrete, similar to code for single family dwelling

 

[DarrenF]

all the posts are sitting on 24x24x8" concrete pads poured in place on undisturbed clay, then I set the 12' posts, braced them as i went, and backfilled. Most of the braces were removed and reused. This was the only way I could do it at the time. It hasn't moved in 6 years so far.

 

[BetterDays]

This is what I built for my shed. I included the basic layout in the attached pdf which includes beam spams, joist spans, and footing sizing (soil dependent).

I wish I would have thought about this when I had my shed built...
My slope is not bad (thankfully), but could have made things much nicer.

 

[BetterDays]

Before stain, before ramp, fresh off the build.

Slight slope, builders used extra pavers for the support.

After 3 years, still level (shockingly)

 

[WhiskeyJim]

My 10x16 shed sits on a slope almost identical to what Jeff95TA shows above. I did a 6x6 timber perimeter, about 3-1/2 ft high in the rear with crushed limestone fill compacted every foot. You could park a large vehicle on there without issue although the heaviest thing I have is a ~1000lb zero turn.

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Nice thank you

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