The terms are very important in Canada mortgages, regardless of the rate. Unlike the amortization, the mortgage term last between 15 to 25 years. There are longer terms available, however, the rates are prohibitive as banks unwilling to predict the longer terms. At the end of the term, you will negotiate again for another deal with your lender according to the rates offered at that time.
Because the prime rate is very low, banks right now are offering better deals for shorter terms, and higher rates for longer terms. There are mortgage calculators that are available online for you to calculate the rates; nevertheless, it is best to let your Canada Mortgage rates be estimated by your broker.