Rigid boxes are built from thick greyboard wrapped in printed paper. They feel premium, hold their shape and suit luxury gifts, cosmetics and electronics, but cost more and take more space to ship.
Folding cartons use lighter card that arrives flat and is assembled by hand or machine. They are economical, lightweight and ideal for retail shelves, food and cosmetics.
Choose rigid when the unboxing experience is part of your brand. Choose folding cartons when unit cost, weight and shelf footprint matter most. Many brands use both: rigid for flagship lines, folding cartons for everyday SKUs.