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I built a simple grape trellis this weekend!
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jafar
764 Posts
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1
March 16, 2015 - 4:16 pm

I wanted something fast and relatively inexpensive, with materials that are available and that I don't need to tension. 

 

trellis in progress

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Viron
1400 Posts
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2
March 18, 2015 - 10:45 am

Grapes are pliable, and capable of being trained up and across anything.  You'll have to determine if you'd like spur or cane pruning, but in the meantime you'll obviously train them across the wire.  What's nice it you'll have fruit next year!  

The photo worked well, but I couldn't make out how you attached the wire to the top of the steel posts...  No biggie, just curious.  I've seen 20 year old grape trellises fall over - and the owners rebuild new ones, attach the grapes - and the grapes will recover them in one season!

Just keep the deer away, then the raccoons and birds ... and the wasps and ants [insert greengrin]...  

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John S
PDX OR
2800 Posts
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3
March 24, 2015 - 4:05 pm

I like those posts Jafar.  They are cheap and sturdy, just like me.

I couldn't get the video to play.

Viron's response was chopped up.

JohN S
PDX OR

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jafar
764 Posts
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4
March 25, 2015 - 9:49 pm

Viron said
..The photo worked well, but I couldn't make out how you attached the wire to the top of the steel posts...    

Its not wire, its 1" thin-wall galvanized steel electrical conduit.

 

fittings

 

Not mine, but same process:

I used self-drilling screws

 

For my blackberries I'm thinking of using 8' T-posts driven 2' in and then attaching 3/4" conduit using 2 hole hangers bolted on with nuts and lock washers.  It will require drilling holes through the T-posts.

pipe hanger

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Dubyadee
Puyallup, Washington, USA
237 Posts
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April 6, 2015 - 6:42 pm

I like the idea of the 1" conduit.  I'd suggest flattening each end of the conduit with a hammer or by clamping in a vise and then drill a 1/4" or 5/16" bolt hole to bolt securely to the T-post.  I think the conduit might slip out of those couplers when a heavy load of vines accumulates on the conduit.

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jafar
764 Posts
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6
April 8, 2015 - 12:59 pm

Dubyadee said
I like the idea of the 1" conduit.  I'd suggest flattening each end of the conduit with a hammer or by clamping in a vise and then drill a 1/4" or 5/16" bolt hole to bolt securely to the T-post.  I think the conduit might slip out of those couplers when a heavy load of vines accumulates on the conduit.

Hmm, I'd thought I'd replied but I must not have hit "enter".

Flattening the end isn't something I'd considered but is a good idea.  Although In order for the conduit to pull out of the fitting it would have to shear the screw or tear through the conduit or fitting wall.  The screw holding the conduit in place isn't a set screw, it pierces the wall of the conduit.

I suppose flattening the ends would get 2 wall thicknesses of purchase on the bolt.

If/when I bolt things to the T-posts directly I'll need to figure out how to pound them without allowing them to rotate.  I'm not good at maintaining the orientation while I drive them.

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