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Extending Fence Posts

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Extending Fence Posts ianjones 10-11-2006
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Posted by on October 11, 2006, 10:06 pm


>This is a duplicate from alt.home.lawn.garden - I did not know the best
>place to post it.
>
>I am replacing the panels on my fence because of rot and lack of
>integrity (1 x 3 cross pieces). It is currently 4' tall and I am
>installing 6' panels. The posts are cemented in and in good shape - I
>would like to keep them. They are on 8' centers. What would be the best
>method for adding 2'+ to the posts? I was thinking I could toe nail
>(least desirable) but I could also use some square metal brackets on 2
>sides (not bad) or several wood dowels (time consuming - there are 45
>posts). I think the best and cleanest install would be to use (if it
>exists) a screw that is threaded on both ends. With a couple pilot
>holes I could screw into the extension and then twist the whole unit
>onto the existing post. The panels have 3 cross pieces and since 1
>would fall on the extended piece it should keep it from ever twisting.
>
>My question is what would be the best option as far as stability, ease
>of installation and aesthetics (in that order I think). If my screw
>option is the best - do those exist and what would they be called? Does
>anyone have a online resource for that stuff? Are they made big enough?
>
>Thanks!
>Ian
>

You'll have to be the judge of the aesthetics, but by far the easiest
and and one of the most stable ways would be to simply nail a 6 ft 2X4
to each post.


--
No dumb questions, just dumb answers.

Larry Wasserman - Baltimore, Maryland - lwasserm@charm.net

Posted by on October 11, 2006, 10:56 pm



> This is a duplicate from alt.home.lawn.garden - I did not know the best
> place to post it.
>
> I am replacing the panels on my fence because of rot and lack of
> integrity (1 x 3 cross pieces). It is currently 4' tall and I am
> installing 6' panels. The posts are cemented in and in good shape - I
> would like to keep them. They are on 8' centers. What would be the best
> method for adding 2'+ to the posts? I was thinking I could toe nail
> (least desirable) but I could also use some square metal brackets on 2
> sides (not bad) or several wood dowels (time consuming - there are 45
> posts). I think the best and cleanest install would be to use (if it
> exists) a screw that is threaded on both ends. With a couple pilot
> holes I could screw into the extension and then twist the whole unit
> onto the existing post. The panels have 3 cross pieces and since 1
> would fall on the extended piece it should keep it from ever twisting.
>
> My question is what would be the best option as far as stability, ease
> of installation and aesthetics (in that order I think). If my screw
> option is the best - do those exist and what would they be called? Does
> anyone have a online resource for that stuff? Are they made big enough?
>
Check local metal supply house for square-section steel tube (like apartment
carports are framed with) the correct size to fit tightly over the post, and
go up another 2 feet. 30" ought to work. You will need a rain cap (stock
item at fence or deck aisle), and you'll have to paint them the same general
color as the wood, but they won't look funny. A couple of through bolts with
a 6" overlap will be plenty strong. For just 2 feet, the square plastic
tubular fence posts would likely be strong enough, as long as the panels
were securely bolted lower down onto the real post.

aem sends....



Posted by Joe on October 12, 2006, 8:32 pm



aemeijers@att.net wrote:
> > This is a duplicate from alt.home.lawn.garden - I did not know the best
> > place to post it.
> >
> > I am replacing the panels on my fence because of rot and lack of
> > integrity (1 x 3 cross pieces). It is currently 4' tall and I am
> > installing 6' panels. The posts are cemented in and in good shape - I
> > would like to keep them. They are on 8' centers. What would be the best
> > method for adding 2'+ to the posts? I was thinking I could toe nail
> > (least desirable) but I could also use some square metal brackets on 2
> > sides (not bad) or several wood dowels (time consuming - there are 45
> > posts). I think the best and cleanest install would be to use (if it
> > exists) a screw that is threaded on both ends. With a couple pilot
> > holes I could screw into the extension and then twist the whole unit
> > onto the existing post. The panels have 3 cross pieces and since 1
> > would fall on the extended piece it should keep it from ever twisting.
> >
> > My question is what would be the best option as far as stability, ease
> > of installation and aesthetics (in that order I think). If my screw
> > option is the best - do those exist and what would they be called? Does
> > anyone have a online resource for that stuff? Are they made big enough?
> >
> Check local metal supply house for square-section steel tube (like apartment
> carports are framed with) the correct size to fit tightly over the post, and
> go up another 2 feet. 30" ought to work. You will need a rain cap (stock
> item at fence or deck aisle), and you'll have to paint them the same general
> color as the wood, but they won't look funny. A couple of through bolts with
> a 6" overlap will be plenty strong. For just 2 feet, the square plastic
> tubular fence posts would likely be strong enough, as long as the panels
> were securely bolted lower down onto the real post.
>
> aem sends....

This will be by far the best looking and easiest scheme for post
extensions.
But first price all the pieces you need, figure you can cut 4
extensions out of a 10' post or 3 out of an 8'. Price the same number
of new posts with concrete if needed. Make a reasonable estimate of the
time to yank out the old posts amd replace.The square extensions will
likely be four times faster. Sit back, pop the top on a cold one as you
decide what matters most, money or your time and then go for it.

Joe


Posted by buffalobill on October 12, 2006, 6:45 am


also soil and climate affects answer to this, try:
http://www.google.com/search?hl=en&q=installing+fence+posts+in+different+soils+and+climates&btnG=Google+Search

ianjones wrote:
> This is a duplicate from alt.home.lawn.garden - I did not know the best
> place to post it.
>
> I am replacing the panels on my fence because of rot and lack of
> integrity (1 x 3 cross pieces). It is currently 4' tall and I am
> installing 6' panels. The posts are cemented in and in good shape - I
> would like to keep them. They are on 8' centers. What would be the best
> method for adding 2'+ to the posts? I was thinking I could toe nail
> (least desirable) but I could also use some square metal brackets on 2
> sides (not bad) or several wood dowels (time consuming - there are 45
> posts). I think the best and cleanest install would be to use (if it
> exists) a screw that is threaded on both ends. With a couple pilot
> holes I could screw into the extension and then twist the whole unit
> onto the existing post. The panels have 3 cross pieces and since 1
> would fall on the extended piece it should keep it from ever twisting.
>
> My question is what would be the best option as far as stability, ease
> of installation and aesthetics (in that order I think). If my screw
> option is the best - do those exist and what would they be called? Does
> anyone have a online resource for that stuff? Are they made big enough?
>
> Thanks!
> Ian


Posted by Heathcliff on October 12, 2006, 6:28 pm



ianjones wrote:
> This is a duplicate from alt.home.lawn.garden - I did not know the best
> place to post it.
>
> I am replacing the panels on my fence because of rot and lack of
> integrity (1 x 3 cross pieces). It is currently 4' tall and I am
> installing 6' panels. The posts are cemented in and in good shape - I
> would like to keep them. They are on 8' centers. What would be the best
> method for adding 2'+ to the posts? I was thinking I could toe nail
> (least desirable) but I could also use some square metal brackets on 2
> sides (not bad) or several wood dowels (time consuming - there are 45
> posts). I think the best and cleanest install would be to use (if it
> exists) a screw that is threaded on both ends. With a couple pilot
> holes I could screw into the extension and then twist the whole unit
> onto the existing post. The panels have 3 cross pieces and since 1
> would fall on the extended piece it should keep it from ever twisting.
>
> My question is what would be the best option as far as stability, ease
> of installation and aesthetics (in that order I think). If my screw
> option is the best - do those exist and what would they be called? Does
> anyone have a online resource for that stuff? Are they made big enough?
>
> Thanks!
> Ian

Another way would be to join the existing post and the extension piece
with a lap joint. Like so:

| |
| |
| _|
|_|
_
_| |
| |
| |
| |

Using glue and screws or bolts. Might be better looking than the
mending plates.. -- H


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