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pergola building question - foundation jd 02-15-2007
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Posted by jd on February 15, 2007, 8:38 am


hi folks,
I'm getting ready to build a pergola/arbor to support my grape vines, and
I've run into a snag.... around here, if a "structure" has a foundation
(including sonnet tubes), it is considered permanent, and therefore taxable
(add even more onto the already astronaomical property taxes)..... I'm
planning to build a timberframe style pergola with 6 posts (2 rows of three
posts each). The three posts are 6'9" apart, and the 2 rows are 8' apart.
The pergola will be 8'6" at the highest point.

My question is: is there any way to build this without putting a "permanent"
foundation down? I'd like to avoid tying the posts together at ground level,
as I'm hoping to set it up so that people cane walk in and out of it easily
(without tripping on a sill).....

Acording to the local building contractor "stakes" are not considered
permanent, but I'm not sure a stake wouls provide suffucient strength. I'm
not worried about settling (up and down movement), but more racking - the
structure will be very rigid at the top - there will be braces from the 6
legs to the top sill, but unless the legs are securely anchored to (or
sunken into) the ground, I'm worried about them shifting laterally.....

thanks

--JD



Posted by Zephyr on February 15, 2007, 12:06 pm



> hi folks,
> I'm getting ready to build a pergola/arbor to support my grape vines, and
> I've run into a snag.... around here, if a "structure" has a foundation
> (including sonnet tubes), it is considered permanent, and therefore
> taxable (add even more onto the already astronaomical property taxes).....
> I'm planning to build a timberframe style pergola with 6 posts (2 rows of
> three posts each). The three posts are 6'9" apart, and the 2 rows are 8'
> apart. The pergola will be 8'6" at the highest point.
>
> My question is: is there any way to build this without putting a
> "permanent" foundation down? I'd like to avoid tying the posts together at
> ground level, as I'm hoping to set it up so that people cane walk in and
> out of it easily (without tripping on a sill).....
>
> Acording to the local building contractor "stakes" are not considered
> permanent, but I'm not sure a stake wouls provide suffucient strength. I'm
> not worried about settling (up and down movement), but more racking - the
> structure will be very rigid at the top - there will be braces from the 6
> legs to the top sill, but unless the legs are securely anchored to (or
> sunken into) the ground, I'm worried about them shifting laterally.....
>
> thanks
>
> --JD
>

Do your neighbors like or dislike you?
I'd consider putting in the tubes to anchor it down and just hope that no
one reports your "landscaping feature" to the township. Really, I'm not a
die hard" keep the government out of my pocket" type person, but seriously.
Taxing someone for building a grape vine holder is crazy.
I'd go for the tubes though because with your vines on top, that structure
is going to get fairly top heavy.

Dave



Posted by on February 15, 2007, 1:13 pm



> I'm getting ready to build a pergola/arbor to support my grape vines, and
> I've run into a snag.... around here, if a "structure" has a foundation
> (including sonnet tubes), it is considered permanent, and therefore
> taxable (add even more onto the already astronaomical property taxes).....
> I'm planning to build a timberframe style pergola with 6 posts (2 rows of
> three posts each). The three posts are 6'9" apart, and the 2 rows are 8'
> apart. The pergola will be 8'6" at the highest point.
>
> My question is: is there any way to build this without putting a
> "permanent" foundation down?

Commercial plastic film greenhouses have 3' galvanized pipes as ground stakes,
about 1.5" diameter. You put the end of the pipe on the ground, slip a bigass
bolt into the top and pound it into the ground. Then slide a smaller pipe bow
into the ground stake and put a horizontal bolt through 2 holes in each pipe.

Nick


Posted by on February 15, 2007, 8:53 pm


hopoe@comcast.net says...

> My question is: is there any way to build this without putting a "permanent"
> foundation down? I'd like to avoid tying the posts together at ground level,
> as I'm hoping to set it up so that people cane walk in and out of it easily
> (without tripping on a sill).....

I've seen this done for a motorhome shelter, where they were also trying
to avoid a permanent foundation. The posts all set into brackets welded
to the top of a foot-wide, half-inch-thick steel plate with beveled
edges. Not much of a tripping hazard, plenty heavy and stiff, but still
a temporary base that just sat on the ground.

--
josh@phred.org is Joshua Putnam
<http://www.phred.org/~josh/>
Braze your own bicycle frames. See
<http://www.phred.org/~josh/build/build.html>

Posted by Arvid Sorsdahl on February 15, 2007, 9:29 pm


Why don't you build it like a pole building. Just buy the posts a few feet
long, weather proof the ends and set then into the ground just like a fence
post.
> hopoe@comcast.net says...
>
>> My question is: is there any way to build this without putting a
>> "permanent"
>> foundation down? I'd like to avoid tying the posts together at ground
>> level,
>> as I'm hoping to set it up so that people cane walk in and out of it
>> easily
>> (without tripping on a sill).....
>
> I've seen this done for a motorhome shelter, where they were also trying
> to avoid a permanent foundation. The posts all set into brackets welded
> to the top of a foot-wide, half-inch-thick steel plate with beveled
> edges. Not much of a tripping hazard, plenty heavy and stiff, but still
> a temporary base that just sat on the ground.
>
> --
> josh@phred.org is Joshua Putnam
> <http://www.phred.org/~josh/>
> Braze your own bicycle frames. See
> <http://www.phred.org/~josh/build/build.html>



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