Quote Originally Posted by JT-68
Did same job myself a few months back.

You'll need a spade, sledge hammer & a grinder.

Dig around the posts until you come across the footing.
Hit base of post a good half dozen whacks with sledge hammer - it should crack at base & if lucky, get a reasonably clean break
Grind off the rio extrusions.

Bobs yer uncle.

JT
Yep cheers mate,

Removed them all on the weekend. I dug about 1/3 of them out completely and the other ones I did exactly as you have stated above. They bust up pretty easily if you hit them hard enough. New 6 foot colorbond is being finished today... looks great so far, thanks for all your suggestions.