How many ram-raid bollards do I need and what is the approximate cost?
Ram-raid bollards should be spaced no more apart than 1.4 metres apart centre to centre, or from centre to the nearest structurally sound wall or structure.
This is to prevent a vehicle gaining access between, so on a typical 3.6 metre wide roller door you would require 2 bollards, or on a 5 metre door 3 bollards.
There are many configurations available with different levels of security, but the average cost of installing a high quality 90mm galvanised and powder coated steel roller door bollard with in-ground sleeve, roller door hold down fittings and high security registered cam-locks and 2 keys is in the range of $700 including installation.
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