As Canada is such a huge country, transport and logistics depend on precisely where your customers are.
For example, goods can be easily shipped from ports in Belfast to ports such as Montreal on Canada's East Coast. Many of the key business regions along the southern border can also be reached via the US. Major cities are also easily accessible by air, with direct flights from Belfast to Toronto and a wide range of connections available on flights via London.
Onward connections and deliveries to other locations can be more complex. Identifying different road and rail options and the most cost-effective routes requires specialist knowledge. Other issues, such as packaging requirements, also need to be taken into account.
Unless your delivery requirements are straightforward, you should probably work with a freight forwarder.