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Old 06-23-2012, 09:50 AM   #16
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[quote=robertcdf;949530]What's your loading requirement for your codes? if it's 55 lbs (40 LL, 15 DL) a sq ft then you've overloaded those rods... I calcd one of the piers and it needs to be capable of supporting over 1,900 lbs.

Wow. Just curious how you came up with 1900lbs on a 6' x 9' section of deck.

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Old 06-23-2012, 09:58 AM   #17
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Quote:
Originally Posted by Bonzai

What are they sitting on?
They're posts that are in the ground....3ft down
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Old 06-23-2012, 10:46 AM   #18
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Quote:
Originally Posted by sannitig

They're posts that are in the ground....3ft down
Just one question ... Why on earth would you think that was a good idea? No idea what country/location you are in, but unless you live somewhere that has zero ground moisture, zero frost, and no conventional building codes/no need for permits ... It is normal to put the concrete footing in the ground and the wood post on top. Instead you've placed a heavy concrete 'post' on a footing which will likely rot. Did your building department approve these plans or don't you need permits where you are ?
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Old 06-23-2012, 10:52 AM   #19
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From what I gathered by his post is he poured 3 feet of concrete with a 5/8 piece of all thread sticking out. Not really sure what is rotting away..
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Old 06-23-2012, 10:58 AM   #20
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Quote:
Originally Posted by CopperClad
From what I gathered by his post is he poured 3 feet of concrete with a 5/8 piece of all thread sticking out. Not really sure what is rotting away..
He poured 3' of concrete above grade sitting on top of posts buried 3' in the ground ... That is what I would be concerned will rot as I said in my last post.
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Old 06-23-2012, 11:06 AM   #21
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I'm not sure how you gathered that. He stated he had poured concrete 3 feet in the ground with 5/8 all thread sticking out the top 11''.
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Old 06-23-2012, 11:17 AM   #22
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Quote:
Originally Posted by CopperClad
I'm not sure how you gathered that. He stated he had poured concrete 3 feet in the ground with 5/8 all thread sticking out the top 11''.
I asked what the concrete footings are sitting on and he responded that they are on posts 3' in the ground ... If he meant that the concrete footings are 3' in the ground then that is different. A post is not the same as a footing.
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Old 06-23-2012, 11:23 AM   #23
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I think the DIYer meant concrete footing.. But I guess we will have to wait for him to clarify.
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Old 06-23-2012, 11:29 AM   #24
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Quote:
Originally Posted by CopperClad
I think the DIYer meant concrete footing.. But I guess we will have to wait for him to clarify.
Indeed. Sill interested in where the OP is located and if they need a permit.
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Old 06-23-2012, 12:18 PM   #25
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[QUOTE=CopperClad;949538]
Quote:
Originally Posted by robertcdf View Post
What's your loading requirement for your codes? if it's 55 lbs (40 LL, 15 DL) a sq ft then you've overloaded those rods... I calcd one of the piers and it needs to be capable of supporting over 1,900 lbs.

Wow. Just curious how you came up with 1900lbs on a 6' x 9' section of deck.
I didn't calc all the piers, I simply calcd 1 pier and it happened to be over 1900#. if there was 1 pier actually holding a 6'x9' section the math would be 6x9= 54 (sq ft) 54 (sq ft) X 55 (the combined 40# live load and 15# dead load) 54x55= 2,970#. HOWEVER there is not one pier on his plan that is supporting 6'x9'. Each pier holds a different weight, attached is a drawing I did a long time ago to show how each pier is loaded, this might help you understand why they're different.
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Old 06-23-2012, 12:34 PM   #26
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So just so I understand.. Are you saying that his 3' footing is to small? Or are you saying the 5/8 nut holding the 1'' steel plate, which in turn is holding the beam is undersized?
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Old 06-23-2012, 12:59 PM   #27
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Another Mcguyver looking to justify what they think after the concrete's poured. He doesn't know what a live load is or dead load. Has no idea what he's doing but does it anyway. A fairly good size deck supported on nothing more than 5/8 bolts or all thread.

A friend of mine is painting his rental house. He says he's just going to spray it. I ask about masking the entire house he says no problem just hold up guards. I ask him about back rolling, not necessary he says. I went back to look I'm still laughing at the worst paint job I've ever seen.

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Old 06-23-2012, 01:26 PM   #28
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Quote:
Originally Posted by CopperClad View Post
So just so I understand.. Are you saying that his 3' footing is to small? Or are you saying the 5/8 nut holding the 1'' steel plate, which in turn is holding the beam is undersized?
I'm saying is WAG (wild ass guess) is wrong. He says the rod is rated for 1,800# and that is more than enough and he is wrong, we also haven't gotten into how long the rod is and how it won't resist lateral movement. The diameter of the pier is also dictated once again by the weight it needs to support, they concrete may be sufficient or it may not be.

There is more to building a deck than knowing how to lay joists out at 16" O.C. and knowing how operate an auger/shovel.
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Old 06-23-2012, 01:47 PM   #29
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Quote:
Originally Posted by CopperClad
I'm not sure how you gathered that. He stated he had poured concrete 3 feet in the ground with 5/8 all thread sticking out the top 11''.
Exactly
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Old 06-23-2012, 01:56 PM   #30
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My only question sannitig is how fare above your concrete footing is the bottom of the 5/8 nut holding the 1'' plate? Like... Do you have 1'' from top of footing to the nut or? My only reason asking is if you aren't that far along with your DIY project, place 2 5/8'' nuts underneath the bottom of the 1'' plate.

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