what length anchor bolts?

Muckit · 12-01-2017 05:19PM #1

Hi all

I want to bolt fence post shoes like these down to mass concrete foundation. What length anchor bolts would be sufficient? It is for post and rail fencing (4 rails). I'm thinking 75mm, but maybe need longer?

Thanks in advance

Muckit

gctest50 · 12-01-2017 07:38PM

It'll end up wobbly after a while unless you can put braces from say halfway up the poles to the ground

the_pen_turner · 12-01-2017 07:40PM

Go as long as possible without going through the concrete. .

riemann · 12-01-2017 07:41PM

Muckit wrote: »

Hi all

I'm thinking 75mm, but maybe need longer?

Muckit

My first guess would be 100mm.

Anywhere between 75/100 will do the trick, but you'll only ever think about this again if they do come loose, so I'd go with 100.

mick121 · 13-01-2017 09:10AM

Use concrete bolts there much handier just get a socket attachment for your battery drill

Calahonda52 · 13-01-2017 11:42PM

very flimsy connection for P&R, wont last any length

jonon9 · 14-01-2017 12:41AM

100mm anchors would do, longer if you can get away with it. But that post holder looks very thin gauge. Having said that it should last a decent amount of time.

what length anchor bolts?

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