Follow these steps if you’re wondering how to print custom boxes online:

1. On the box’s online calculator, input the interior dimensions you need.
2. Select the material and the sides that will have a design.
3. Choose the quantity you require. No minimums are required for a custom box order.
4. Indicate your preferred production time: the standard takes 10 to 15 business days while a rush job takes 6 to 8 business days.
5. To access the 3D online design tool, go to “Design Your Mailer Box Online” at the bottom of the online calculator.
6. After completing the design online, select “Add to Cart” to check out the custom order.