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Provide feedback on my small shed design!

Viper98912

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Oct 20, 2012
Messages
1,139
Location
GA
Hello GJ'ers,

The gardening tools and lawn mower are taking up too much space in my garage, so it's time to build a small shed and get this stuff out! Originally I was planning on building a smaller 8x12' on a slight hill, and I was going to build it like a deck on piers. But after thinking about it, I didn't really like the way it looked in the spot I had chosen.

So I've decided to build it in another area, which is much flatter and I can go a little bigger to 10x12'. I figure I can level this area out some, put in a few inches of stone and then build a 3-4" concrete pad.

In general, it's:
- 10x12' outside dims
- 6' wide double door (will be a double 3-0); two 2x12's as the header
- Has 4 small windows in the back for additional light (14.5" x 14.5", convenient little things I've used before)
- Built like a traditional 2x4 16"OC (probably overbuilt for the purpose)
- 2x6 roof rafters on a structural ridge
- A double 2x6 to act as a rafter tie, and a few perpendicular 2x6 ceiling joists to help keep the other walls in
- I haven't decided whether to put in a few strong-ties for uplift (I'm not in a hurricane zone, but still...)
- I may add wire decking on the back half of the ceiling joists to help hold some lightweight items (chicken wire, etc)
- Interior will have some nice sanded plywood panels to hang stuff from (and just look nice in general)
- The exterior will be finished same as the house - same shingles, same hardie siding and trim, and same vented vinyl soffits
- No electrical, no plumbing, no floor drain, and no urinal; I'm going against the GJ-standard

I've calculated I need about 1.5 yards of concrete, which is small, so unfortunately this may need to be done the manual way with some quikrete or sakrete bags. At 60 lbs, I'd need about 100 bags o_O but through some searching on here, I did find the "mudmixer" which seems to really work well for this type of stuff. I'll need to see if I can rent one locally and pay a neighborhood teenager to help me knock out the heavy lifting on a Saturday. I figure I can frame out a simple rectangle with 2x8's, fill in the bottom with about a yard of stone/crusher run to give me a little under 3" of base, then fill in the rest with concrete.

Any thoughts or feedback?

Old design:

Old Shed Design.jpg

New design:

New Shed Design Front.jpg

New Shed Design Rear.jpg
 
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PCustoms

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Jul 23, 2011
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23,684
Location
VT
Overkill on roof design. Massive overkill on the header.

Wood is expensive....

10'x12'x(4/12)=40 cubic feet, that's 66+ 80lb bags that need to be mixed and poured in an hour.
 
Last edited:

BillK

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Aug 24, 2006
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9,426
Location
Beautiful Southern Maryland
Maybe check with a few local places that do patios and see if they might pour the slab part for you ? 100 bags of Sacrete is a lot to be ******* around no matter how young you are :)

The only thing else you might have to watch is depending on your area they will probably consider that a permanent structure and require permits etc.
 

Bert_

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Dec 24, 2016
Messages
9,871
Location
NW Iowa
I built this a few years ago to keep a lawnmower and some other junk in. 8x12. 6'x6' door. Salvaged tin and some lumber, $170 in bought material.

KIMG2193.JPGKIMG1890.JPG
 
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Viper98912

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Joined
Oct 20, 2012
Messages
1,139
Location
GA
Maybe check with a few local places that do patios and see if they might pour the slab part for you ? 100 bags of Sacrete is a lot to be ******* around no matter how young you are :)

The only thing else you might have to watch is depending on your area they will probably consider that a permanent structure and require permits etc.
No permit required for sheds under 200 sqft, and there's no electrical or plumbing (y)
 
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Viper98912

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Joined
Oct 20, 2012
Messages
1,139
Location
GA
Overkill on roof design. Massive overkill on the header.

Wood is expensive....

10'x12'x(4/12)=36 cubic feet, that's 60+ 80lb bags that need to be mixed and poured in an hour.
Roof design:
1) An extra 2x4 in the center of the structural beam (no big deal to add?)
2) A couple of diagonal 2x4's to help reduce front/rear tilt? I don't think this one is necessary, but it was easy enough to put in...

Header:
1) I guess I could go 2x10 on this

Concrete:
1) 10x12x1/3 = 40 :)


Thoughts?
 

PCustoms

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Jul 23, 2011
Messages
23,684
Location
VT
Roof design:
1) An extra 2x4 in the center of the structural beam (no big deal to add?)

Not following, the vertical? Does nothing

2) A couple of diagonal 2x4's to help reduce front/rear tilt? I don't think this one is necessary, but it was easy enough to put in...

Not sure what you mean by tilt. I assume you're sheathing the outside, and you clearly state you are sheathing the inside with plywood. Sheathing on either side is a shear wall and prevents racking

Header:
1) I guess I could go 2x10 on this

Could go a lot less. There should be no vertical load there.

Concrete:
1) 10x12x1/3 = 40 :)


Thoughts?

Oops, rounding error. I punched in .3

66+ bags, by hand, in an hour before you loose the slab. Make sure to have help and personally those mud mixers look slow.
 

LOW1

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Jul 20, 2018
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2,700
Location
ontario
You might want to check the prices and building quality at local shed builders.
 
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Viper98912

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Joined
Oct 20, 2012
Messages
1,139
Location
GA
Question to the experts - I have a little bit of a slope that I need to fill in, perhaps with maybe only 1 or 2 yds of fill. So I'm curious to know what you think is better for the base:

Option 1)
- Level out with fill dirt (clay around here)
- Build a 10x12' box with 2x8's
- Fill the bottom ~3" of the box with crusher run
- Pour the remaining ~4-1/4" or so with concrete

Option 2)
- Level out with fill dirt
- Put a 3" (or more?) layer of crusher run in a ~12x14" area
- Build a 10x12' box with 2x4's
- Fill the box with 3-1/2" with concrete

Option 3)
- Skip the fill dirt and level out a 12x14' area with a minimum of 3" (or more?) of crusher run, with it being deeper at the lowest point of the slope
- Build a 10x12' box with 2x4's
- Fill the box with 3-1/2" with concrete
 

Bigblue&Goldie

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Joined
Mar 12, 2009
Messages
10,804
Location
AZ
I just built a small 5'x12'. I opted to build it on a steel skid (so I can move it down the road) and leveled it on some landscape pavers to keep it off the ground/moisture. I need to re-landscape the side of my house, so I'll gravel around it and nobody will be able to tell it's on the skid.
 
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