Well you're stuck then, cos they all get that size - eventually. There aren't any dwarf forms of Cordyline. They do take some time to get that big though - I have 2 downstairs planted 3 years ago quite small (no woody stem) and they're now about two and a half feet high. I will remove those once they get too big and replant new.
Have a look at Phormium cookanium - these are similar, but don't develop a woody stem like Cordyline, they spread sideways and can be dug up and split. They're evergreen and the leaves are similar - don't choose a P. tenax variety though, these do get pretty tall.

Very many thanks for your help. I will pass the answer on to 'Er Indoors, and we will look at Phormium Cookanium instead.

I find the reds and coloured varieties are slower growing so stay smaller longer

Roughly how big in say 10 years starting from say 2 feet?

Cordyline 'Torbay Dazzler' is a beauty, I dont know its eventual height but mine is only 2ft tall at the moment...Its been in a pot since ' 04...and i have only ever top-dressed and fed it....I will however pot it on this coming spring....You can look at mine on page 7 of my pics if you like....:>)

The ones I mentioned growing in my garden for 3 years are the red leaved phormiums, and have grown 2.5 feet in that time, if that helps. Its not been my experience that the green ones grow faster than the coloured varieties. Growing them in pots will restrict their eventual height because of root restriction.

Many thanks for the advice. We are cinsidering these for a garden border, not a pot. The info is very useful in making up our minds. Thanks again.