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Old 03-21-2011, 08:05 AM   #16
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Raising an existing Jack post (Telepost)


I agree with Ron, except that the min. footing depth is only typically 12" here, sometimes down to 8", and oftentimes even thicker than 12". What you did sounds more like a "band-aid" to me, unless of course I'm not understanding you correctly.

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Old 03-21-2011, 09:20 AM   #17
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Raising an existing Jack post (Telepost)


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Originally Posted by Ron6519 View Post
"The footings are 7" by 11" each and about 2-2.5 inch deep (like the old one). THey are currently curing (Day 1). I made sure to prime the surface before with some concrete glue and even mixed this with the concrete mix. Is this ok?
Was I also supposed to dig a little before placing the footing on top?"
This does not constitute a footing. Footings are 2 feet x 2 feet by 2 feet for a two story house, give or take.
Unless this is a doll house.
Ron

I guess maybe I am confused myself. I believe the previous pole is embedded in a concrete block (8x8") not as a footing but probably more as a protection from garage floor?? The garage floor itself is ground level and is 4 feet deep in concrete (minimum due to a basement and frost line).
So im guessing in theory a footing is not even needed? So I guess maybe i should get rid of the block I built because if the pole sits on top of this (less than 2x2 feet) not even embedded and touching the garage floor, then it will for sure crack.
Am I correct with this statement?
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Old 03-21-2011, 04:27 PM   #18
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Raising an existing Jack post (Telepost)


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Originally Posted by malicio View Post
I guess maybe I am confused myself. I believe the previous pole is embedded in a concrete block (8x8") not as a footing but probably more as a protection from garage floor?? The garage floor itself is ground level and is 4 feet deep in concrete (minimum due to a basement and frost line).
So im guessing in theory a footing is not even needed? So I guess maybe i should get rid of the block I built because if the pole sits on top of this (less than 2x2 feet) not even embedded and touching the garage floor, then it will for sure crack.
Am I correct with this statement?
I really have no idea what you just said here.
"The garage floor itself is ground level and is 4 feet deep in concrete"
Is the garage floor 4 feet thick? If it is, then you don't need a footing.
Ron
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Old 03-21-2011, 06:01 PM   #19
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Raising an existing Jack post (Telepost)


Yes my garage floor is min 4 feet deep. So I guess no footing.

I will just embed the base of the pole with concrete like the existing pole that is there to avoid water damage to it from the surrounding garage floor. Someone recommended the following:
---I would also suggest placing the screw jack at the base of the posts on the new ones, as it's far more robust than the hollow tubing and will survive better in a wet location such as a garage floor. ---

My plan would just to put a steel plate on either side at the bottom as recommended by the manufacturer and have the screw on top. And then embed the bottom with concrete.

Is there a better way to do it?
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Old 03-21-2011, 06:34 PM   #20
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Raising an existing Jack post (Telepost)


Are you sure you don't mean inches instead of feet? I have never seen a garage floor for a residential property that is 4 feet thick, that would be a massive floor, suitable for an industrial building. What basis do you have to believe that the concrete is four feet thick?
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Old 03-21-2011, 07:35 PM   #21
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Raising an existing Jack post (Telepost)


Same goes for me. I have never seen a residential home having a 4’-0’’ thick garage floor. It is normally 4’’ thick +/- and as per your columns I would use 3 new 3 ½’’ diameter adjustable columns with a 6’’x6’’x3/8’’ base plate and a 4’’x4’’x1/4’’ top plate which would be bolted to your wooden beam once it is raised to its proper height. Remove your old post and replace with one of the new ones.
As per your footings, they should be at least 3’-0’’ x 3’-0’’ square and a minimum 3’-0’’deep. Make sure when you dig your footings that they are finished 4’’ below your finished floor so when you put your columns in place and adjust them you can then add the remaining concrete and finish it flush to your existing floor.
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Old 03-21-2011, 08:23 PM   #22
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Raising an existing Jack post (Telepost)


Hmmm. Ok. The thing is I have a basement surrounding the bottom of the garage (not directly beneath), and so I guess I assumed that since the walls of the basement are 4 feet at minimum below ground that there must be some sort of footing for the garage floor. The walls for sure on the sides of the garage go down minimum 4 feet but the middle part (where the post is) I am unsure.
Sounds like a lot of work for a garage roof that is only a balcony. And if I were to dig in that vicinity, I would probably be digging into the same footing of the existing pole because all these poles are side by side. I guess why I am confused is that I have these posts all over the basement holding up the whole house while the basement floor is concrete, I doubt that there are any footings 3 feet deep beneath each one of those steel poles. They look like they were just placed anywhere there was load. Each one of these poles I am putting in the garage is rated for 8700lb load.
Digging two holes 3 feet deep for 3 poles to hold a beam that is currently being held only by 1 pole seems like quite a bit of work.

Do I have any other choice from the info I provided?
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Old 03-21-2011, 08:29 PM   #23
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Raising an existing Jack post (Telepost)


If you are unsure on what to do then get a structural engineer to look at the problem and give you a solution for your situation.
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Old 03-21-2011, 08:32 PM   #24
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Raising an existing Jack post (Telepost)


Post photos of what you're trying to explain, as the "information" you're supplying has issues.
Ron
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Old 03-21-2011, 09:08 PM   #25
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Raising an existing Jack post (Telepost)


Hello. Thanks all for your feedback. Pictures are posted earlier in the thread for reference. In this case I guess I am at a roadblock with what to do. I will probably have to end up getting a structural engineer to come in and take a look. I have other 'issues' that they need to look at so why not.
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Old 03-21-2011, 09:21 PM   #26
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Raising an existing Jack post (Telepost)


Well if you also have other issues to deal with you might as well go that route and get all your questions answered by someone who is qualified and visited your site to assess your situation.

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