Fees depends on who you ship with. UPS will eat your a** in brokerage fees. I ordered $40 book over the summer and got hit with a $30 fee. If you're in Canada, always use USPS for cross border shipping. USPS will go to Canada post and brokerage will only be like 5 bucks instead of 75% the value of what you bought. If you must ship UPS use the 2nd day air or similar because those air services don't charge any brokerage. For the amount of brokerage ground shipping charges, you can probably get next day air shipping and still have change
For other shippers, I don't know what their policies are but I'd expect similar brokerage fees.
You'd also have to pay GST as well.
Those are all the fees that I'm aware of. I don't know if you also have to pay customs inspection fees?