Anchoring Posts - Carpentry - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Carpentry


Thread Tools Display Modes
Old 10-12-2008, 05:41 PM   #1
Join Date: Oct 2008
Posts: 1
Rewards Points: 10

Anchoring Posts

I am about to build a pole barn. After the dirtwork was completed, I went to drill the post holes for the 6x6 posts to set in, but was only able to dig down about 6 inches until I hit solid rock. I was thinking of just filling the holes with concrete, but I know that is not deep enough for the posts to set in. Anyone have any ideas on what to do or any products I can use to anchor the posts to concrete above ground?


jason 198 is offline   Reply With Quote
Old 10-12-2008, 08:36 PM   #2
Join Date: Sep 2008
Location: Portland, OR
Posts: 1,186
Rewards Points: 500

It's hard to beat depth to secure a building.

Did you try and get past the rock? Maybe it is in just that one hole.


My idea of a perfect day: No where to go and all day to get there.
Marvin Gardens is offline   Reply With Quote
Old 10-13-2008, 05:37 AM   #3
Join Date: Jun 2008
Location: Costa Rica
Posts: 423
Rewards Points: 250

where are you located?
I may go home hungry, but not tired and hungry.
TazinCR is offline   Reply With Quote
Old 10-13-2008, 09:22 PM   #4
Join Date: Oct 2008
Posts: 12
Rewards Points: 10

I would rent a jackhammer and make sure to get deep enough. Easier to do it now then jacking up the barn and doing it later after it sinks.
miller01 is offline   Reply With Quote
Old 10-13-2008, 10:17 PM   #5
concretemasonry's Avatar
Join Date: Oct 2006
Location: Minneapolis/St. Paul, Minnesota - Latitude 45.057 Longitude -93.074
Posts: 4,082
Rewards Points: 2,654

Do you have a plan and someone to be responsible for the design and changes? - Otherwise it is just a guessing game and you are reponsible since it is a DIY project without soil borings and a real design.
concretemasonry is online now   Reply With Quote
Old 10-14-2008, 09:20 AM   #6
Lic. Builder/GC/Remodeler
AtlanticWBConst.'s Avatar
Join Date: May 2006
Location: New England
Posts: 7,556
Rewards Points: 2,000

I have zero experience with building pole barns.

On another note:
I will say this. There are times when we are installing pier footings (Sono tubes), and we hit a vary Large boulder. Dependant on the size of the boulder, we will drill holes into them using a rotary hammer. Then, install rebar using an "anchoring epoxy", and pour the concrete over that. This passes code inspection every time.

As Concretemasonry stated, the most important area of a structure, is it's foundation, so be very careful, and do things right...
- Build Well -
AtlanticWBConst. is offline   Reply With Quote
Old 10-18-2008, 11:51 PM   #7
Green Builder
Join Date: Oct 2008
Location: Sedona, AZ
Posts: 58
Rewards Points: 75

Can you not excavate enough to set a a post base in concrete and bolt the poles to same?

If the rock is clean, tight and monolithic, removing it to add concrete seems counter-productive. Drill some rebar dowels into it and use it as the footing if possible.

Be mindful of wind loads (especially uplift) and consult an engineer as necessary. Gone with the wind isn't just a movie title.


chalk_hill is offline   Reply With Quote

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
help settling porch posts - a dilemma. wombosi Carpentry 9 10-10-2008 12:01 AM
Q:Temp support to replace beam and posts on deck dougq Building & Construction 10 09-02-2008 04:24 PM
Cracks in pressure treated posts (4x4s, 6x6s) Deck Building & Construction 8 05-15-2008 10:57 PM
Support posts for 12' high deck hotchkiss Remodeling 3 09-05-2007 06:32 PM
Installation of pergola posts HDelahay Landscaping & Lawn Care 13 10-11-2006 06:46 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1