Setting Posts In Clay - General DIY Discussions - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > DIY Forum > General DIY Discussions


Thread Tools Display Modes
Old 06-12-2011, 10:16 PM   #1
Join Date: Mar 2011
Posts: 4
Rewards Points: 10

Setting posts in clay

Hello all,

Hoping someone out there has some advice on how to set posts in damp, red clay in the Green Bay, WI area.

The fence will be a 6 foot high cedar picket fence. From what I have read on this forum people are suggesting a 4 foot depth for the post with a bell shape towards the bottom, and 6 inches of gravel for drainage. The issue I am running into is water is filling the base of the holes. I have seen people use the concrete form tubes but wasn't really sure if this was the right approach.

Any suggestions out there? Any tips on how to create the bell shape at the bottom?



Nasumi is offline   Reply With Quote
Old 06-13-2011, 02:29 AM   #2
Join Date: Dec 2008
Location: Fairbanks, AK
Posts: 1,852
Rewards Points: 1,010

Setting posts in clay

You may be a candidate for concrete posts below grade, and wood above. Treated lumber is not supposed to rot, but I would not trust it if constantly wet. The label on treated wood that I have seen says "not for below grade use", though it is commonly used for posts in soil. As for the bell shape, you can use a plastic bucket or buy the forms at lumber, concrete, etc, stores. Or, pour a flat pad and set the post on top in a Sonotube-type device. In some places, concrete around treated lumber is against code. Water gets in, can't get out quickly, and the post rots, so chipped gravel is recommended.


jklingel 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
setting deck posts (4x4) in concrete anchors/piers amakarevic Building & Construction 30 09-28-2011 10:30 PM
setting aluminum railing posts in 6"x6" pressure treated landscape ties. remdel4lesbyric Building & Construction 1 05-19-2011 06:51 PM
Guidance needed for deck support posts Mike Loyd Building & Construction 4 08-23-2009 08:03 PM
setting posts for pole building 2wheelerbill General DIY Discussions 2 04-12-2009 08:13 PM
Q:Temp support to replace beam and posts on deck dougq Building & Construction 10 09-02-2008 05:24 PM

Top of Page | View New Posts