Bollards - Need info on telescopic bollard

[clive]

Hi John
I recently quoted for a client for the a manual drop down bollard They evetualy went for the fold down sort these being a little cheaper to install. I got this from Machine Mart who have a good selection and are easy to get hold of
http://www.machinemart.co.uk/ranges.asp?g=117&r=2135
or do you mean somthing a little more ornate? if so let us know and I dig out the other sorts we looked at

[Tony McC]

You must be psychopathic, John. On Friday night I uploaded a new links page covering bollards, lighting and street furniture suppliers in Britain and Ireland!

Have a look here

[steve r]

For some reason best known to them I received an e mail from this company promising free delivery. I've not heard of them but in case its of any use here is there address:

http://www.barriersdirect.com/

Regards Steve Rogers

[Ronnie Stanley]

Has anyone tried fitting these to a block paved drive? Can they just be bolted straight onto the bricks?

http://www.saundersonsecurity.co.uk/acatalo....st.html

[msh paving]

you would not bolt one direct to block paving as a good wriggle and pull and push it would come off,

[Ronnie Stanley]

Thanks. So remove a few bricks, pour in some concrete, replace bricks & then fix bolts?

[GB_Groundworks]

i fitted 20 marshalls rhino posts into an old garage forecourt to become a car sales pitch, concrete was about 300mm thick and c35 was a hard job. but they where a good product and really heavy and strong just a bit of work to fit.

[Tony McC]

That type of bollard is more of a visual than a physical deterrent. It's *very* easy for determined twocker to nudge them flat with minimal damage to the car being twocked. The retractable types are much more effective, but they cost more, both of the actual bollard and for the installation.

That fold-down type need to be affixed to a solid plinth of concrete, which needs to be at least 300x300mm in plan and 450mm deep to give the bollard any real chance of not being rocked out of place by the local scalliwags. The easiest installation method is to cast the plinths and then drill for the anchor bolts once the concrete has cured. On some commercial jobs, we'd embed threaded bar in the concrete using a template to ensure the positioning was correct, rather than relying on having to drill at a later date.