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Hand-setting posts for garage extension

fourbyford

Well-known member
Joined
Aug 3, 2017
Messages
913
Location
North Idaho... almost Canada!
Hey Guys... emergency here! Just bought the High Captain a new car and she is not willing to let it sit outside... as my Jeep, truck and the previous car have for a few years now. We currently have a 4 bay garage but, as every good GJ'er knows, that's not nearly enough room! One of the bays houses the tractor... my means of snow removal... very important around here! I really dont want it sitting out... would mean a clearing and "thawing" ritual before any snow removal could commence. The other 3 bays are currently under construction... adding wiring, air lines, insulation, etc. I am rounding the bend on that job, but don't want the new ride in there while I'm working... that would be an invitation to disaster!
I've been considering several alternatives for "temporary " structures... for reasons too numerous to list, they just won't work. I have been considering adding a bay on the east end of the current garage. After debating all the potential temporary fixes, we decided that NOW is the time to add the bay! It will follow the roofline of the existing structure... approximately 14' wide and 30' deep. The current garage is a post framed structure... the addition will require that I set 4 additional 6x6 pressure treated posts. Posts on the existing building appear to have been hand set. I've read various discussions over the years concerning hand set posts vs setting them in concrete. I've built other post framed structures... always set posts in concrete and had zero problems... but those were in a very dry climate. We're very wet here. I've read in the past that hand set posts will allow water to drain away and thus, are better in wet climates. The existing garage is approximately 15 years old and all looks well.
So... (finally)... here's my question... how best to set the posts? Concrete? ..although, I think I'll go with what has seemed to work here... I'm open to hearing your ideas! If I hand set, my thought is to dig the holes a foot deeper than required... add 12" of compacted sand/gravel as a base to set the post on, then, fill and compact. What say you??
And, to add to the fun, i hope to get some kind of a roof up within a couple of weeks... no problem, eh? ...lol
Thanks!!
...D
 
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Shiftless

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Mar 9, 2014
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14,594
Location
East Bay SFO
Wouldn’t it be easier and make more sense if you just halted work on one of the bays so that you could let your wife park inside? At least until Spring? Northern Idaho means really cold with lots of snow, right?
Whatever “temporary” extension you build would absorb money and time to not only put it up but also tear it down later on. A couple of hundred square foot addition good enough to withstand your winter weather can’t be built in a weekend by one guy.

Am I missing something?
 
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F

fourbyford

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Joined
Aug 3, 2017
Messages
913
Location
North Idaho... almost Canada!
This is the current garage... the bay on the left side is where I keep the "lawn tractor "... the west end of the building. The addition will be on the east end. The pic inside the tractor bay is just to show the type of construction I'll need to duplicate... pretty simple, really...
And, we're currently slated for a few days of nice weather... enough time to get holes dug and posts in the ground. I'll probably be working on at least some of this in the snow, but it won't be the first time! My plan is to remove the siding from the east wall and re-use it on the new wall. Will cover the wall (where siding is removed) with OSB... same as I'm doing on the inside work that's already underway.
Headed out now to do some measuring... then, headed to the "big city" for posts!
...D20191221_084228.jpg20191221_084259.jpeg20191221_084422.jpg

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Natty Bumppo

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Joined
Dec 8, 2019
Messages
370
Location
Savoy, MA
My 2 cents. I just don't trust the longevity of 6x6 PT posts in wet soils. I have seen 30 and 40 year old pole barns here in Northwest Mass. come down because the posts rotted off at ground level where there was oxygen and water. 4' down the posts were fine.

When I set my posts a few years ago for a 25x35 pole barn I used a 6"x6"x5' pre-cast and reinforced cement pier which sat in the ground on a footer. My wood posts will never be in ground contact.

If it's just 4 posts and you're not too worried about the building outlasting you, cement will work. Hand setting them would work. Whatever you choose, I do think I'd set the posts on some kind of a footer at the bottom of you hole though, as opposed to just the compacted sane and gravel.

Post.jpg
 
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fourbyford

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Joined
Aug 3, 2017
Messages
913
Location
North Idaho... almost Canada!
Hey Shift,
...the point is, what I'll build now WON'T be temporary... it'll be the addition. So, no wasted time, money, etc.
As I mentioned, the inside of the 3 bays is a story unto itself... clearing the way to park the new ride will require that I take down my "workshop" set up (tablesaw, etc.) ...not to mention that, even if I could squeeze the car in, every time I fired up a saw, the car is covered with saw dust... and, the potential of hitting the car with an errant 2x... or whatever... I'm not willing to take the risk.
Believe me, we've run through every possiblity ... as far fetched as it sounds, this seems to be the best solution.
Thanks for your thoughts!
...D
 

Natty Bumppo

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Joined
Dec 8, 2019
Messages
370
Location
Savoy, MA
Hey Natty...
What are you thinking in the bottom... a round paver?
...D

Yes, exactly. You can buy them pre-cast for whatever size hole you dig. I had oversize holes drilled for my 6x6's and then just poured a footer myself with about 3 or 4" of bagged concrete. Dropped scrap pieces of rebar in as well.
 
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