Hi,
Currently, ROR is not provided on any of our shared hosting plans.
You can only install this to any of our VPS/DEDICATED servers.
Fee free to visit these links,
http://www.canadianwebhosting.com/vps.asp and
http://www.canadianwebhosting.com/dedicated_hosting.asp for more information about our VPS and DEDICATED hosting plans.
If you have further concerns, you may also contact our Sales team at 1-888-821-7888 for more information.
Ferdi