A carton is a box or container typically made from liquid packaging board, paperboard and from time to time of corrugated fiberboard. Quite a few kinds of cartons are used in packaging. , or flat. From your Cambridge English Corpus These fed into horizontal picket ducts within the roof construction, https://gabletoppak.com/aseptic-tetra-pak-vs-non-aseptic-gable-top-choosing-the-right-carton-for-your-needs/