Just look at the CBSA site.
http://www.cbsa.gc.ca/import/postal-...roits-eng.html
Protip: If the goods are made in USA or Mexico, they are part of NAFTA and thus, may be free of duty charges. GST likely will still apply.
Putting 'gift' on the snowboard in this case would be mail fraud. Do you really want to be stopped at the border every time you go across it, or worse be denied entry, for a few bucks?
Snowboards are under category 4, as they are sports and exercise equipment and would have duty assessed at 8% of the item value plus 5% GST, assuming you are importing it into Alberta. You'd be paying GST anyways in Alberta, so as long as the shipping and 8% duty are less than the savings, it's a good deal.