Fixing a balustrade post to cast stone coping

[voicey]

Hi,

I have a low parapet wall that I wish to mount a ballustrate above - to do this I need to fix vertical posts onto the coping stones. These are once weathered cast stone copings, which means the top surface is at an angle. If I mount the post base onto these directly the post will be off vertical.

Any ideas on how to mount this:

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• voicey
• 6 Aug 2013
• 1

onto this

Untitled

• voicey
• 6 Aug 2013
• 1

whilst keeping the post vertical?

Any ideas gratefully received!

 

[RonnyRaygun]

I'd rotate it so that two of the bolts are packed with S/S shims or washers, and then carefully grout underneath with resin or similar.

The bigger problem is that it won't take much force to dislodge the coping if someone leans a bit hard on the top of the balustrade. You will need some additional fixing into the brickwork to prevent this, either dowelling through the coping or maybe or perhaps using some extra long resin anchors drilled deep into the wall to connect the balustrade.

 

[voicey]

I'd rotate it so that two of the bolts are packed with S/S shims or washers, and then carefully grout underneath with resin or similar.

The bigger problem is that it won't take much force to dislodge the coping if someone leans a bit hard on the top of the balustrade. You will need some additional fixing into the brickwork to prevent this, either dowelling through the coping or maybe or perhaps using some extra long resin anchors drilled deep into the wall to connect the balustrade.

Thanks for the idea. What sort of resin grout did you have in mind? I did think of packing it up but couldn't work out how to finish it properly.

With reagrds to the top of the post - I will be fixing a handrail to it, the ends of which will be firmly fixed to the walls. The opening is only 2m not too much but wide enough for me to need a central post to fix the glass panels to.

 

[noseall]

What is it with teccies and resin anchors these days as if they are a magical panacea for all things fixed to masonry?

In a lot of cases expanding bolts will do.

However in this case i think the O.P. needs to approach fixing differently i.e. face fixing to the lower courses etc.

 

[RonnyRaygun]

What is it with teccies and resin anchors these days as if they are a magical panacea for all things fixed to masonry?

In a lot of cases expanding bolts will do.

However in this case i think the O.P. needs to approach fixing differently i.e. face fixing to the lower courses etc.

I think the OP is set on using this detail.

If the opening is only two metres and the handrail is continuous then top fixing shouldn't be a problem.

Expanding bolts are often fine, but in this case I would still want a long enough fixing to get to a decent depth in the masonry.

 

[RonnyRaygun]

What sort of resin grout did you have in mind?

If it's only a small quantity you might find something suitable by Sika at B&Q.

 

[voicey]

However in this case i think the O.P. needs to approach fixing differently i.e. face fixing to the lower courses etc.

That is a very good call actually - I will investigate further.

Thanks to you both for the ideas. I will report back.

 

[Nozzle]

Rather than faf about with washers and resins and end up with a cludge, why don't you take the metalwork to a machine shop and get them till mill the bottom off at an angle. Supply them with the angle you want, or a sample of the stone and once the mill is set up they can just slice off the base of them all.

Nozzle

 

[voicey]

Rather than faf about with washers and resins and end up with a cludge, why don't you take the metalwork to a machine shop and get them till mill the bottom off at an angle. Supply them with the angle you want, or a sample of the stone and once the mill is set up they can just slice off the base of them all.

Nozzle

Another very good call and one that would work well. Thanks!