Cardboard boxes are used for a lot of purposes; not only they are used for business-related purposes, but nonprofit organizations also use them to dispatch items from one place to another place, archive documents or store different things. Moreover, they are also used for recreational purposes. Some hobbyists love to make a different kind of cardboard box projects and even kids like to make their doll or dog houses with them. However, irrespective of the quality of these custom cardboard boxes, they are vulnerable to moisture. This post sheds light on the use of duct tape to make customer cardboard boxes 100% waterproof.