what can you send in the canada mail
First Class packages to Canada are limited to no more than 4 pounds, for example. You can ship packages up to 66 pounds to Canada via Express or Priority mail. With these two methods, a basic 20-lb. package costs $116.95 and $71.70, respectively, at the time of publication. You can cut these costs almost in half by using U.S. Postal Service flat rate boxes.