How can I extend a metal fence post ?

[Gary111]

I've got a short round metal car park type fence post , I would like to extend it to 5 or 6 ft high so that I can build a featherboard fence on the post.
Would that be possible somehow ?

I wondered about hollowing out a timber post , slotting it onto the metal one and drill and bolting through.
Thanks

 

[Burnerman]

How about a length of steel tubing that the existing post will slot into?
What sizes are we talking about here?
John

 

[Gary111]

Thanks, I'm not there now so will have to measure it, I would say it's around 50 or 60 mm diameter.

 

[Burnerman]

No reason that the existing post can't slot into square steel tubing if that's more convenient! A nice snug fit would be great.
John

 

[Gary111]

Thanks John, I've just been looking at floplast 65mm square down pipe, do you think that might be strong enough ?

 

[Burnerman]

Not if it's going to support anything, I'm afraid......down pipe has to be clipped to the wall - it's not self supporting to any degree.
John