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What's the minimum stud spacing for a 12 x 12 storage shed?

545_days

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Oct 30, 2016
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Texas
I spent a lot of time in "temporary" WW2 era buildings built with studs on 48" centers in the 1990's.

Edit to add: After some research to confirm my memories I found that some buildings built to theater of operations standards were constructed with 2x6 studs on 8 foot centers. 😮
 
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strutaeng

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Dec 12, 2011
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Dallas, TX
I did a roof overbuild at my house (living room portion) and used 23/32" plywood for the roof deck, spanning 48" o.c. supported by trusses.

I've walked on it and it feels less bouncy than the regular 7/16 osb at 24" o.c.

You can achieve a very tight deflection criteria (for ceramic tile installation, for example) using 1 1/8" Stud-i-floor deck supported at 24" o.c. or less with some TJI joists.

It really depends on what you are trying to accomplish and willing to pay for. Or make things as lean, light and reduce costs...
 

BurtEggley

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Oct 8, 2024
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also might depend on whether you plan on insulating it someday. Most of the big box stores here only stock 15.25" wide R-13 batts.
 

Hooked

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Sep 24, 2010
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League City, Texas
One of our shed builds, when funds were very tight.
In 1980 we built a 12x16 'quick and dirty' chicken coop using untreated 2x4s 24"OC and 2x4 rafters the same. Put some 6" 4' treated posts on 4' centers about 30" in the ground. Siding is corrugated fiberglass sheets and roof is hot dipped galvanized corrugated panels (used and free). Framed and sided windows on three sides for air flow during the day and closed at night for protection. No cross bracing.
This building has survived multiple hurricanes with 100+ winds, many storms with high winds, etc. and is finally beginning to 'lean' due to the use of untreated interior materials. Should we tear it down, sure. But it has a lot of character and sentimental value when sitting with a cup of coffee looking out the kitchen window. ;)

I think your shed with 24"OC framing will do just fine
 
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OldCarGuy

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Ohio
The cost difference between 16” and 24” construction is minimal. And is more of a personal choice, not withstanding building codes. I've seen country side buildings using 2x4 rafters 24” OC on a 12' low pitch roof. That have stood the test of time. My preference is always 16” everywhere. Though I have used 12" OC for floor joists.

I got tired of juggling things around to get my small Ingersoll garden tractor and scissors out. Answer I built this 15' by 16' shed. Studs are 2x4's and rafter are 2x8,, 16” OC. Using 5/8” T11 siding and 5/8” roof sheeting. Insulation in walls and ceiling. Always use 5/8” type X fire-rated drywall. Where possible using 4' by 12' sheets. Installed 240 Volt 60 Amp load. All wiring 12-2 romex. LED lights, and electric door opener. Heated and A/C from a small through the wall unit. Garage door was in my stash 10' wide 8' tall that's insulated. Then 36 steel man door was also in my stash. The build took me two weeks..
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Paint and epoxy coated floor a nice touch..
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The 14" gear head lathe found a home inside..
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Below is a 15' by 30' lean-to I constructed with the same construction as the shed. But has a 240Volt 100Amp load center. Build set me back three weeks of time.
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MajicPac Through the wall gas heat and electric AC unit..
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OldCarGuy

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Nov 29, 2005
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Ohio
Although all my garages are heated and air conditioned, a dehumidifier is a must-have in them. I mount the high on a wall to keep them out of the way.

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Superbowl

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Feb 19, 2026
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Location
DC area
The maxium spacing depends on the siding you choose. If using 4x8 sheets of T-111 four foot is the max because you need one at each joint. 😄

More seriously, the important thing in designing a shed is to start with the roof size to minimize waste. If you want your shed to be approximately 16x12 you can't make the floor 16x12 if you want an over hang and not have to put a small piece in. A three inch roof overhang on each end works well. Therefore, make the floor length 15'-6". With T-111, let the front siding hang past the side walls and scribe and cut the front end panel after you put the side panels on. That way the end plys of the siding will not be visible.
 
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