Help Please....Deck Post Question - Building & Construction - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction


Thread Tools Display Modes
Old 05-11-2009, 11:35 PM   #1
Join Date: May 2009
Posts: 1
Rewards Points: 10

Help Please....Deck post question

I have a 16' x 8' 2nd story deck with 10' posts. It is attached to the house on one 16' side and has stairs off one of the 8' sides. The posts are placed at the edges of the concrete on the pad below. The thickness of the concrete is approx. 4". How do I go about adding a proper pier/concrete pour to make a legitimate support for these posts? I really want to avoid removing the posts if at all possible and would be great if it looked good in the end as people are constantly in the backyard. Thanks for the help.
Attached Thumbnails
Help Please....Deck post question-img142.jpg   Help Please....Deck post question-img143.jpg  


steve dowd is offline   Reply With Quote
Old 05-12-2009, 06:06 AM   #2
Join Date: Dec 2008
Location: Wilmington, DE
Posts: 3,118
Rewards Points: 2,000

Decks have been under serious scrutiny for years because of collapses involving injuries, yours was obviously not done under permit as it should have been. The post require footers to below the frost line, check local code for that number. And the only way to do it is install temporary support while the post is removed or at least moved so you can dig out under.

While you are at it, check how the ledger is connected to the house. VERY important on a deck off the second floor. The number and size of bolts varies according to code, but I always think more is better.


Just Bill is offline   Reply With Quote
Old 05-12-2009, 07:39 AM   #3
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 17,248
Rewards Points: 2,000

Where are you located?
How long has the deck been there?
Any pic of the deck above?
Any cross bracing?

Last edited by Scuba_Dave; 05-12-2009 at 05:22 PM.
Scuba_Dave is offline   Reply With Quote
Old 05-12-2009, 04:17 PM   #4
Join Date: Mar 2007
Location: Long Island, NY
Posts: 11,188
Rewards Points: 5,336

You really need to remove the posts you have, cut the patio where the piers will go and reinstall the posts after the piers have cured to the point they'll bear weight.
You can't dig the hole you need with the posts in place.
Ron6519 is offline   Reply With Quote
Old 05-12-2009, 07:25 PM   #5
Join Date: Jul 2008
Location: Canada (s/w ON.)
Posts: 2,294
Rewards Points: 1,000

I had a similar problem only it was a concrete porch deck that needed to be supported for a new roof that I installed.
With the porch and foundation it wasn't possible to cut it open.
In my case, I dug down and undermined the concrete wall(which had no footing) and poured a footing down at the 4 foot level.
Then I placed a section of 12" SONO tube between the new pad and the base of the foundation wall. It was positioned so that 50% of the tube cross-section was under the wall and the other 50% was open at the top.
Then I poured concrete in the top and filled the SONO tube.
In the case of a pad, I would just saw open enough of the pad to allow a Sono tube to be placed. Fill the tube and install a suitable post anchor.
Wildie is offline   Reply With Quote
Old 05-12-2009, 09:30 PM   #6
Join Date: May 2009
Posts: 90
Rewards Points: 75

Humm just wondering, looking at the pics does not look like you have dug down to see if there is a footing or not. So are you sure there is not aq footing already?
texas115115 is offline   Reply With Quote
Old 05-12-2009, 10:04 PM   #7
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 17,248
Rewards Points: 2,000

I was thinking the same thing
Yeah never know, may find a surprise
They could have dug holes & then poured the whole slab at once


Scuba_Dave is offline   Reply With Quote

concrete , deck , footing , posts

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Deck Post Height for Composite Post Railing ylwdog Building & Construction 5 11-15-2010 09:01 AM
Post detail for raised covered deck jogr Building & Construction 3 05-16-2009 07:46 AM
Two Story Deck Question Chris11 Building & Construction 4 05-06-2009 10:34 AM
Deck Stair Question Uncle Larry Building & Construction 10 06-19-2008 07:08 PM
Engineering help request: drilling holes in a deck joist, supported by a post Deck Building & Construction 14 05-31-2008 10:16 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1