Mick Cant wrote:

wondered if there were any cup type caps I
could put under the wheels to stop any carpet damage.

B&Q do several. They'll reduce damage but not stop it. Search their site
for 'castor'. For example:

http://www.diy.com/diy/jsp/bq/nav/nav.jsp?action=detail&fh_secondid=9370482&fh_view_ size=6&fh_start_index=6&fh_location=%2f%2fcatalog0 1%2fen_GB&fh_search=castor&fh_eds=%C3%9F&fh_refvie w=search&ts=1233692079765&isSearch=true


--
Dave