In Canada, most tree seedlings are shipped from nurseries in waxed corrugated cardboard boxes. These boxes are then usually disposed of by burning or by putting into landfills. The Forest Engineering Research Institute of Canada (FERIC) investigated collapsible reusable plastic shipping containers as an alternative to waxed corrugated cardboard boxes for shipping tree seedlings. This report discusses types of tree seedling containers currently being used and tested in Canada, the feasibility of using collapsible reusable plastic shipping containers, and disposal options for waxed corrugated cardboard boxes.