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nadman 04-05-2008 10:13 AM

Wood fence set in Cement Deck
I have a wood fence on the edge of my cement deck. The posts are set in the slab about 4 inches from the edge.
The fence is old (starting to rot) so I'd like to replace it. The posts came out of their cement holes easily enough due to rot at the bottom.
Now I'm wondering about replacing them and how to do it so they are solid/secure and also prevent rot as much as possible. Do I coat the end of the post with some sort of epoxy or something? The holes are tight so I'll have to shave down the 4x4 a little bit to wedge them in.

Any comments/help is appreciated.

nadman 04-05-2008 11:32 AM

I should clarify that its a simple fence.
4x4's as posts.
2x4's for the top and bottom rails (stringers) and 2x2's as verticals about 6 inches apart.
About 40 feet of fence total.

dchaban 04-16-2008 04:00 PM

If it's not too late
I envision the 4" of concrete breaking out as you snugly fit a new fence post in place. Perhaps fill the hole and run the fence just outside the conc. pad?

Regardless, pressure treat or cedar posts, or tar, or chemical up the end of the sub-grade post for longer life. Fencing experts or wood fencing sites might share the tricks of durability.

Randell Tarin 04-17-2008 08:16 AM

2 Attachment(s)
If the concrete is in good condition, I would fill in the holes where the posts had been, then use post anchors to secure the post to concrete. This keeps them out of the ground and will prevent them from rotting.,00.html

nadman 04-18-2008 12:14 PM

Not too late and thanks all for the advice.
I'm a bit nervous about post anchors. The deck is about 4 ft high and the sides are covered in brick....I'm a bit nervous that I'll have brickwork problems if I start putting post anchors into the brick mortar?
Is that an unfounded fear?

Randell Tarin 04-18-2008 06:48 PM

Not unfounded at all. You want to put the anchors into solid concrete at least 2" away from the edge of the concrete pad.

I'm not clear on how your site is constructed. I was assuming a concrete pad sitting on the ground. Now you say that it's 4' high with brick veneer??

Can you clarify?

nadman 04-18-2008 07:22 PM

Yeah, sorry, missed that important detail.
I didnt actually construct it so I'm not entirely sure.
But basically, it's a deck that is a concrete pad sitting on something (cinder blocks I'm guessing) with a brick veneer.
If my digital camera was working, I'd snap a picture.

Randell Tarin 04-18-2008 07:28 PM

Yikes! That might change things a bit.

How thick is the pad? If it's thick enough, you should still be able to use the anchors as long as you can drill into something solid.

I wonder if the concrete blocks are filled with concrete or just dirt? mmmm.

I'm out of options for you sorry.

nadman 04-18-2008 07:32 PM

The pad is 4 inches thick.
Thanks for the least I got to think thru some alternatives.

Randell Tarin 04-18-2008 07:38 PM

Does the drop on the side of the concrete pad that is faced with brick represent your property line?

Could you extend fence posts down to the bottom of this brick wall? If it's on your neighbors property, he might allow the post to be placed there if you are going to be sharing a fence.

nadman 04-18-2008 07:59 PM

No sides of the deck represent the property line....all sides are well away from any property lines.

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