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yo25
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# Posted: 11 Feb 2025 04:14pm
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Let me know if anyone thinks this setup is no good. I am planning on building a 12x12 cabin. The ground is very rocky and was planning on using the Pylex adjustable support brackets.
Link to bracket: https://pylex.com/wp-content/uploads/2024/01/12098_fichetech_deck-support-33-66-1.pdf
Plan is to make a 12"x12"X12" concrete block and place the bracket in the concrete.
Link: https://pylex.com/wp-content/uploads/2024/01/12098_guideinstallation-support-patio-33 66-1.pdf
There will be 9 blocks with brackets and thinking about using a double 2x6x12 for the beams that will set on 3 of the blocks. So total of 3 double 2x6x12 beams then build on top of that. The idea being that if adjustments are necessary in the future for levelness then can just adjust the brackets. Each brackets can support 2750 lbs.
Is this a crazy idea? Any suggestions appreciated.
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gcrank1
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# Posted: 11 Feb 2025 04:55pm
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Seems like overkill for a 12x12.
This going to be one story?
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yo25
Member
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# Posted: 11 Feb 2025 06:16pm
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Thinking about a loft not for sure yet.
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Brettny
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# Posted: 11 Feb 2025 06:30pm
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I would use 2 girders and just put them on blocks on the ground. 3 girders makes it hard to re level.
2 2x6x12 would be good for a single girder/runner
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spencerin
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# Posted: 16 Feb 2025 10:39pm
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I second what Brettny said.....
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socceronly
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# Posted: 17 Feb 2025 03:42pm
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I went down the Pylex adjustable path in planning too, but eventually settled on what is suggested above.
There isn't much advantage unless you are putting in a pad or below frost line columns to bother with concrete. There is no sense in messing with the concrete to make the blocks.
Using skids on drainage rock or blocks prevents any chance of racking in the base. If you were thinking like me I was hoping to find a way of prevent that while still having a simple way to level things.
If you are worried about uplift, use anchors.
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socceronly
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# Posted: 17 Feb 2025 03:52pm
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Curious question.
Can you adjust the level of something like this under load? Assuming you have the leverage to do it, should you?
Are they intended to be initially leveled, or maintenance leveled after finishing construction.
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Brettny
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# Posted: 18 Feb 2025 07:38am
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I'm not sure if you can adjust under load but by the looks of them they have no support from racking. I'm really not even sure what a good use for them would be.
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DRP
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# Posted: 18 Feb 2025 09:38am
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For stuff like that I tend to look for an ES number first. That is "Engineering Services" for code approval. I then know the product is approved and I can look up the product, its intended uses and how it was tested. From what I can tell this company "invents" consumer products, has them manufactured in China, then peddles them to DIY'ers in North America. That's all fine and good as long as one is aware. If the work is going to be inspected and if it is a structural item, which this is, this kind of stuff is very likely to be flagged for replacement with something approved or for an engineers letter. The pier block they show it sitting on is prohibited for this use so for me it is "run, do not walk."
Typically things like log home jacks have Acme style threads and much higher capacity. This is one;
https://www.loghelp.com/products/the-nortek-leveler.asp
Notice it does not have an ES number, I do not see code approval, but click on the test results page and it describes testing done to ASTM standards on a calibrated machine by an independent third party. That would pass with most inspectors as meeting the intent.
As always look to all the weak links in an assembly as well, #2750 is not the capacity. That double 2x6 is going to play out around 2000 lbs at that span and a 12x12 block is 1 square foot, what is the bearing capacity of the soil?
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