If the label sheet template model you use is not provided by the application, one can be created by inputting the primary dimensions in millimeters.
From the Dashboard page, select "Label Sheets" from the navigation at the top of the page. Then click on "Create a new label sheet template".
Follow the steps provided by the application.
Super Address Labels is an application for Shopify that enables merchants to print addresses and other data from their orders onto label sheet templates made by Avery, Dymo, and other manufacturers, using a laser/inkjet or direct thermal printer.