The recent surge in e-commerce has highlighted the significance of packaging shapes, with square designs like cardboard boxes being favored for their efficiency and sustainability in shipping. Brands are increasingly shifting to rigid packaging due to its compatibility with automation, as robots handle square items better than flexible ones. This trend is also seen in primary packaging, such as vitamins and snacks, which are adopting square formats. Despite the ongoing evolution of packaging technologies, square packaging remains dominant, driven by the need for density, cost savings, and consumer preferences.

Source: https://www.supplychaindive.com/news/ecommerce-square-densification-dimensioning-rightsize-box/736923/