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Help me plan my outdoor shed project

Posted on 10/8/25 at 7:06 am
Posted by CAD703X
Liberty Island
Member since Jul 2008
91128 posts
Posted on 10/8/25 at 7:06 am
First it's in the side of a hill so there's an issue of leveling to start with. The area is already slightly graded.. There's a small shed there now and some ancient cinder blocks in the ground which makes me think once upon a time there was a larger one in that space.

I did some measuring and I could pour a 12x28 or possibly larger concrete pad.

Questions:

What size shed would be appropriate?

Pro/con concrete pad v cinder blocks. I guess I could skip installing a proper floor that way and save a few dollars

I want space around it for smoker and a couple Adirondacks to enjoy the outdoors. Is that pad too small to accommodate that and still have a decent sized shed?

Electricity..I have an unused 40 on my breaker box so I would want to put a panel inside so I can run a full shop and possibly a small sauna inside. What impact would having a concrete pad have on pulling cable? Would I need to do that first?

What other things should I consider? I want something a little nicer here than a shed to store a few smelly tools and old paint cans

Posted by Salmon
I helped draft the email
Member since Feb 2008
85366 posts
Posted on 10/8/25 at 8:10 am to
quote:

I could pour a 12x28 or possibly larger concrete pad.


quote:

I can run a full shop and possibly a small sauna inside.


quote:

space around it for smoker and a couple Adirondacks


That's a lot for that amount of space

you would probably want at least a 10x12 area for the patio, so that would leave only 18x12 for the shop/shed

once you fill it with all your junk and a sauna, I'm not sure how much space you are going to have for a shop

my shed is 12x12 with an 8' porch on it and its pretty full
Posted by LSUJML
Central
Member since May 2008
51895 posts
Posted on 10/8/25 at 8:26 am to
How tall are you going?
Could always add a loft up top for extra storage space
Posted by CAD703X
Liberty Island
Member since Jul 2008
91128 posts
Posted on 10/8/25 at 8:32 am to
Yeah you're right. I could probably extend that foundation to maybe 16' or even 20x20 but that will cover some nice flagstones that are already there. I guess I could not be lazy and dig them up and create a new path
Posted by CAD703X
Liberty Island
Member since Jul 2008
91128 posts
Posted on 10/8/25 at 9:03 am to
quote:

How tall are you going?
Could always add a loft up top for extra storage space
i could do that; i have to decide if i want something that tall though. i think maybe i'll stick with a single level and just go for a longer width.
Posted by baldona
Florida
Member since Feb 2016
23311 posts
Posted on 10/8/25 at 10:49 am to
Budgets a little important here.

$5,000 compared to $50,000 changes things
Posted by dblwall
Member since Jul 2017
1084 posts
Posted on 10/8/25 at 11:31 am to
Reasonably priced, you assemble.



Posted by CAD703X
Liberty Island
Member since Jul 2008
91128 posts
Posted on 10/8/25 at 11:57 am to
quote:

dblwall
there's a similar one on costco right now (12x20 i believe) for $3500 but i am intimidated by the 'you build it' part of this. i dont know that i have the time or expertise to do it right. i figure if i do start w/ a slab, that i can at least stick boards up straight though
Posted by CAD703X
Liberty Island
Member since Jul 2008
91128 posts
Posted on 10/8/25 at 11:58 am to
quote:

$5,000 compared to $50,000 changes things
i would love to do the whole project for 10k-ish but i haven't priced concrete slabs in about 8 years so that may break the budget.
Posted by Clames
Member since Oct 2010
18839 posts
Posted on 10/8/25 at 5:09 pm to
I'm in the planning stages for a backyard storage shed too. Local place has Premier Buildings pre-fab units, a 10x16 utility shed is $4,995. This will be purely a storage shed so no need to run power to it, I could hang a rechargeable LED lantern in it if I needed but I don't think I'll be putting anything in there that I'd need to get to at night. Only reason I even need something as large as that is that I have two 14' ladders I'd like to store plus have a long wall for some large shelving units.

For what you want OP, you might want to look into cabin-style outdoor buildings and probably something in the 20'x40' range. I've been looking into similar for an actual shop, 16'x32' or 20'x40' with a roll-up door.
This post was edited on 10/8/25 at 5:26 pm
Posted by sosaysmorvant
River Parishes, LA
Member since Feb 2008
1460 posts
Posted on 10/9/25 at 5:12 am to
quote:

i would love to do the whole project for 10k-ish but i haven't priced concrete slabs in about 8 years so that may break the budget.


That's a tight budget in today's world if you want something semi-nice. Concrete over cinder blocks if you want it nice.
Posted by BoogaBear
Member since Jul 2013
6961 posts
Posted on 10/9/25 at 6:54 am to
quote:

would love to do the whole project for 10k


I have a 12x20 shed with a loft, double doors on one side, and 2 windows, barn style roof. It was $7,500 delivered.

Once you put in shelves and work benches and everything else, the space gets small quickly. Don't even plan on doing any major projects in the shed. It's a pain in the arse bringing in even 8 foot boards to cut and work on. I always just set up a table in front of the shed.
Posted by Clames
Member since Oct 2010
18839 posts
Posted on 10/9/25 at 9:28 am to
quote:

Don't even plan on doing any major projects in the shed. It's a pain in the arse bringing in even 8 foot boards to cut and work on. I always just set up a table in front of the shed.


I would like to have a setup big enough to handle 16' materials but I go back and forth on how I'd want to do that. I think I could do more with my budget with a somewhat smaller shop if I instead make an outside covered area adjacent for breaking down larger material first or running my planer. Would keep more dust outside too, wouldn't need as much of a dust collection system then. Just sucks working in heat and mosquitoes the older I get....
Posted by CAD703X
Liberty Island
Member since Jul 2008
91128 posts
Posted on 10/9/25 at 11:28 am to
12x20 is what I'm leaning towards right now but I'll need to walk around in a few.

Also I have a tight entrance to my house so that could be an issue if it's pre built.
Posted by WarriorTiger
Member since Oct 2025
18 posts
Posted on 10/9/25 at 12:51 pm to
Sounds like a cool project and nice you have a vision.

Regarding personal experience, if you think the area can have water drainage issues, the blocks will work better than the pad. Sheds (and equipment) placed on pads that are not leveled or elevated slightly can have water damage where the base meets the concrete.

40A should be plenty, unsure about the Sauna. Can you split it to two (2) 20s? Might help with some isolation on equipment and pleasantries.

Lastly, when you route your electrical, raise the junction box when it comes out the ground, don't go level (again referencing the drainage).

Windows on both sides for breeze/circulation, one of the best things I ever did.

You don't need to pull cable on the pad, but you'd want to put some conduit and maybe 2 ropes on either side that you can pull later on. We did that with an addition, and it worked perfectly.

Goodluck!
Posted by CAD703X
Liberty Island
Member since Jul 2008
91128 posts
Posted on 10/9/25 at 1:03 pm to
thanks!! i am not sure about drainage, i think it will be ok its on a slope..

hold on i'll upload a couple of pics of the site to give you a better idea. i routinely take on projects where i have no idea what i'm doing so maybe a couple of visuals will help you see the area and prevent any bone-headed moves (or at least minimize them)
Posted by CAD703X
Liberty Island
Member since Jul 2008
91128 posts
Posted on 10/9/25 at 2:12 pm to
ok i'm back. so here are objectives

- decent storage shed, probably will put a window ac in at some point, definitely dehumidifier and enough room for a small workbench and all my tool boxes & carts

- electricity so i can run a table saw and hang lights over my workbench, outlets for battery chargers, etc.

- possibly making it a place i can work from occasionally if the house gets too insane

- outside pad "lip" around the building to potentially store things outdoors like wheelbarrow, hide my smoker in the back of the shed, maybe a couple of chairs in the front to enjoy the view of the water, just don't want the pad ending where the shed ends.

having said that; here we go:

- top/left corner of pad will be the cinderblock just to the left of the swingset. there is already a fairly graded area here which i'm guessing those cinderblocks once were used for a larger shed once upon a time. there is a shitty tiny one to the right; the roof has caved in

- this back area (in front of rounded grass edge) would likely be where any smokers or things the wife doesn't want people seeing will live so i'd like the pad to provide room to walk around on all 4 sides of shed.




FRONT VIEW

- 12 feet from back of swingset to the near cinderblock corner. to get 16-20 feet would come to the middle of the flagstones so i would have to dig them all up and rebuild a path.

- 28' from the cinderblock corner ends about the middle of that old shed. i could easily keep going another 8-10' feet with the pad in that direction

- yes the drop is pretty good coming all the way to the flagstones but the ground is cut-in (note the cinderblock right behind the A on the swingset) so i'm not sure what the total fall would be..likely would to also pour 1 or 2 steps at least.

- entrance to the right would allow access to drive lawmowerrs, etc. in

- the house (first pic) crawlspace opening is just behind the current grill..i would pull the line through the crawlspace and trench the 10' or so to the wall of the shed. shouldn't be a difficult run.




ok. let me know how terrible the plan is ive come up with so far

this area is a mess right now; lots of planters there which have become one with the ground so i'll have to move all that crap & cut down all the mess of weeds. its wasted space right now and we have nowhere to hide stuff like extra smokers, etc.
This post was edited on 10/9/25 at 2:21 pm
Posted by Clames
Member since Oct 2010
18839 posts
Posted on 10/9/25 at 4:42 pm to
quote:

probably will put a window ac in at some point, definitely dehumidifier



Just do a window unit, dehumidifiers just aren't that reliable and a window unit will remove the humidity better without needing to dump a bucket or worry about a drain line.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
70921 posts
Posted on 10/9/25 at 8:29 pm to
Friends dont let friends buy wallbangers. Get a mini split.
Posted by Clames
Member since Oct 2010
18839 posts
Posted on 10/10/25 at 9:59 am to
That's going depend on his shop size and electrical capacity. I've looked into 120V mini-splits in thinking about my eventual shop and not impressed with what I've read. You can mount a window unit high on a wall in a dedicated spot without using a window too. I did this in my last small shop with a small Toshiba unit and it worked great to dehumidify and provide modest cooling. Far better than the GE dehumidifier that crapped out after only a few months.
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