The Fencing Picture Thread

[Macsky]

Adjustable?

Dynamic

 

[ARW]

Only joking, usually do something along these lines:

View attachment 753198

Would be better with longer 4” for the stay assembly but just work with what’s there. Have also invested in a crimp tool so will be replacing the gripples with a crimp, have had gripples fail on the stay assembly.

Why have you set the gate from the strainers?

 

[Willie adie]

Only joking, usually do something along these lines:

View attachment 753198

Would be better with longer 4” for the stay assembly but just work with what’s there. Have also invested in a crimp tool so will be replacing the gripples with a crimp, have had gripples fail on the stay assembly.

now in my opinion your stays are too high!
and you think mine are too low!
somewhere in between

 

[Dave6170]

I put the stays about knee height. Im no pro though. And i hang gates on strainers aswell because im a miserable git.

 

[Willie adie]

I put the stays about knee height. Im no pro though. And i hang gates on strainers aswell because im a miserable git.

knee hieght is spot on i would say

 

[7740 man]

I’m with @Willie adie on this one. Post the strut goes to is almost 5ft in the ground

 

[ARW]

View attachment 753264 I’m with @Willie adie on this one. Post the strut goes to is almost 5ft in the ground

Same here we drive the post that holds the strutt as far into the ground as we can, that post and the strainer are the strength of the fence.
I also like the struts in the centre of the net, any higher I worry about the strainer jacking out, A strut cannot actually be to low, it’s very basic physics

 

[Macsky]

Why have you set the gate from the strainers?

Why not?

 

[Macsky]

Same here we drive the post that holds the strutt as far into the ground as we can, that post and the strainer are the strength of the fence.
I also like the struts in the centre of the net, any higher I worry about the strainer jacking out, A strut cannot actually be to low, it’s very basic physics

I disagree. A lower stay has a lot more potential for lift. I spent a year in Canada when I was younger and they didn’t use diagonal stays at all because they were so prone to lifting when the frost was coming out of the ground in the spring, they used box stays instead. Where was the strut on them? It certainly wasn’t at the bottom, it was near the top where it could exert the most effective horizontal force on the strainer post.

 

[Macsky]

knee hieght is spot on i would say

Sorry, couldn’t resist [emoji23] [emoji23]

 

[Willie adie]

I disagree. A lower stay has a lot more potential for lift. I spent a year in Canada when I was younger and they didn’t use diagonal stays at all because they were so prone to lifting when the frost was coming out of the ground in the spring, they used box stays instead. Where was the strut on them? It certainly wasn’t at the bottom, it was near the top where it could exert the most effective horizontal force on the strainer post.

to be fair the frosts in canada will be far harder than we will ever get here

 

[ARW]

I disagree. A lower stay has a lot more potential for lift. I spent a year in Canada when I was younger and they didn’t use diagonal stays at all because they were so prone to lifting when the frost was coming out of the ground in the spring, they used box stays instead. Where was the strut on them? It certainly wasn’t at the bottom, it was near the top where it could exert the most effective horizontal force on the strainer post.

A box strut is more effective because you are using a 90 degree angle and a 45 degree angle together, a normal strut at an angle greater than 45 degrees is over centre and has greater upwards force (like a pair of scissors closing)

 

[Bury the Trash]

Why not?

extra cost of course, but seperate gate hanging and falling posts protect / save the strainers / fence from anysort of gateway 'wear and tear'.

 

[tepapa]

I disagree. A lower stay has a lot more potential for lift. I spent a year in Canada when I was younger and they didn’t use diagonal stays at all because they were so prone to lifting when the frost was coming out of the ground in the spring, they used box stays instead. Where was the strut on them? It certainly wasn’t at the bottom, it was near the top where it could exert the most effective horizontal force on the strainer post.

You've got your physics a bit mixed up. Height of strut isn't as important as the angle. A high but short strut is adding greatest lifting force to to strainer, a low strut is adding far less lift as it is pushing more horizontally. A high but long strut is good but key word being long like 10' (3m) long to reduce the angle. Similar to a shorter strut which is lower down the strainer.
You can't compare construction of box to angle struts, they're under tension in a different way.

 

[Macsky]

You've got your physics a bit mixed up. Height of strut isn't as important as the angle. A high but short strut is adding greatest lifting force to to strainer, a low strut is adding far less lift as it is pushing more horizontally. A high but long strut is good but key word being long like 10' (3m) long to reduce the angle. Similar to a shorter strut which is lower down the strainer.
You can't compare construction of box to angle struts, they're under tension in a different way.

I imagine it like torque, if the bottom of the strainer is the pivot point, then the further up you are the more leverage you have against the pull of the wire. I totally agree about length and angle of strut.

Imagine if you had a strainer in the ground, and you were given a set force to apply to it horizontally as a strut, you can’t say it’s going to be as effective at the bottom as it would be at the top.

I find tie backs amazingly effective, especially in soft peat, they are working far more optimally than struts, because their effective force is pulling at the top of the strainer, above the wire, and downwards. I’m always amazed by the force they hold in such soft ground.

 

[Macsky]

extra cost of course, but seperate gate hanging and falling posts protect / save the strainers / fence from anysort of gateway 'wear and tear'.

True, but a lot of gates I install are actually rarely used, and I think I would struggle to convince most that they needed to spend more than double on each gateway.

 

[Macsky]

Has anyone seen or heard of pull-out force tests being done on various strut assemblies? It’s the kind of thing you’d imagine them doing in NZ, would be really interesting to see.

 

[tepapa]

Has anyone seen or heard of pull-out force tests being done on various strut assemblies? It’s the kind of thing you’d imagine them doing in NZ, would be really interesting to see.

Yes the Americans didbsome in the 1930's

 

[tepapa]

I imagine it like torque, if the bottom of the strainer is the pivot point, then the further up you are the more leverage you have against the pull of the wire. I totally agree about length and angle of strut.

The strut creates the pivot point /fulcrum so it is where you set the strut as to where the pivot point is. The ground is only the pivot point when there is no strut.
And as you say the further up you are the more leaverage you have to lift the strainer

 

[Macsky]

The strut creates the pivot point /fulcrum so it is where you set the strut as to where the pivot point is. The ground is only the pivot point when there is no strut.
And as you say the further up you are the more leaverage you have to lift the strainer

So the more wire wrapped round below the pivot point the better?