I have seen 6.2m telescopic ladders on eBay for £19.00 but you got to ask yourself just how good they are when the likes of Screwfix are selling 3m+ types between £100 & £150. I really would not like to find out when 6m above the ground. I have a 3.6m one which is more than adequate to reach everything I need to on our bungalow but it is heavy and difficult to manoeuvre I can only imagine how awkward a version nearly twice mine would be to carry, extend and manoeuvre.
Richard