Props/support.

Basswood

Carpal tunnel level member
Location
Long island
Curious what you all have found to be the best props. A frame, u shaped metal bracket to rest on or what tree care LA is utilizing in the post? Or is this totally dependent on the situation?

 
A thru bolt instead of a cradle.
My father in law has a box elder he propped before I married into the family and the scarring from the cradle is apparent. Image.jpg
 
I saw this in a park garden in Paris. Hard to see, but they have some kind of padding to protect the tree. Of course it's in a park, so it probably gets inspected frequently.
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Looks like a terrible design. Anthropomorphizing designer.



At what PSI does a tree have issues?



Maybe Parisian parks are great at maintenance. I wouldn't hold my breathe.
 
Did they build a form to cast it in place?
I don't know if it was produced on-site or elsewhere. The sculptor is Italian, but he could have done it anywhere, I suppose.

It's called L'Arbre des Voyelles - The Tree of Vowels. You can't tell from the photo, but some of the roots are intertwined to make each of the vowels. And then where five of the branches touch the ground are planted five different species of trees, the name of each beginning with one of the vowels.

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Sorry to derail. I didn't get a close look at Nick's prop, but is it free to pivot while still providing support? Sounds like it was cemented in the hole and bolted into the tree. Does a tree still need the ability to grow/flex?
 
I gathered that the threaded rod on the top of the prop was a slip-fit in a hole in the tree drilled from the bottom. The branch would be able to move up and sway if the post is flexible.

I think that I'd do a double-nut/washer underneath not just a nut.
 
I gathered that the threaded rod on the top of the prop was a slip-fit in a hole in the tree drilled from the bottom. The branch would be able to move up and sway if the post is flexible.

I think that I'd do a double-nut/washer underneath not just a nut.
It looked to me like he was screwing that bolt into the drilled hole. And there was another similar prop on another limb. I would have have thought those would be too static to accommodate the short and long period motions of a tree.
 
Curious what you all have found to be the best props. A frame, u shaped metal bracket to rest on or what tree care LA is utilizing in the post? Or is this totally dependent on the situation?

You have to have them custom fabbed per tree.

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Hey guys! Glad you’re talking about props!

we use a variety of sizes. Most common is steel, 2.5” OD. The top “cap” is a 5” long threaded insert that sits on top of the round schedule 40 tube.

We used to have them welded but frankly it was annoying having them welded every time we needed a prop. Now we have the component sitting on a shelf ready to go.

if you have questions, fire away!

love
nick
 
if you have questions, fire away!

Thanks for coming in, @NickfromWI

Question about the threaded rod on top of the prop. It looks like you used a spade bit to drill a clearance hole in the bottom of the limb. Then you slipped the threaded rod in the hole like a spike in a tarp grommet. The nut is run up to the wood. Why didn't you use a flat washer or the double washer/nut configuration?

I like the looks of the ring weldment for propping.
 

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