2/OTT Underground Wire/Cable Needed

Are you looking for single copper 2/0 cable or 2/O underground triplex. Around here home depot, Menards, and possibly Lowes would have the aluminum underground triplex or URD type cable. If you need the copper as some local codes may want you will probably have to go to an electrical supply store. Most are wholesale only but will generaly sell you some cable as most know that alot of times home center stores just don't have the right things. The aluminum underground is way cheaper but is much more difficult to get through your entrance ells and into the panel lugs. Also you may need to go up a size to carry the load you are after. How large a service are you installing?