Buyers often say "cardboard" for both, but corrugated board and paperboard are different materials with different jobs. Getting this vocabulary right with your supplier prevents weeks of confusion.
Paperboard (carton board) is a solid, single-layer sheet, usually 200–450 gsm. It is smooth, prints beautifully, and folds cleanly. This is what retail packaging — color boxes, cosmetics cartons, food packaging — is made from. It is the material behind nearly every box you see on a store shelf.
Corrugated board is a sandwich: two linerboards with a fluted (wavy) middle layer. That flute is the point — it gives crush resistance and cushioning at low weight. Shipping cartons and e-commerce mailers are corrugated. Flutes come in grades: B-flute (~3 mm) and E-flute (~1.5 mm) are the most common in packaging; E-flute can even be printed directly for a retail-grade look.
The simple rule
- Product touches the box, customer sees the box → paperboard
- Box protects during shipping → corrugated
- Premium e-commerce brand → both: a printed paperboard box inside a corrugated mailer, or an E-flute mailer printed well enough to be the unboxing experience
Hybrid options worth knowing
E-flute corrugated laminated with printed paper combines print quality with genuine protection — common for fragile goods like glass cosmetics bottles. Rigid boxes use grayboard, a third material: dense, uncompressed board that gives luxury boxes their weight.
When you request a quote, state which material you mean by "cardboard" — or better, describe the job: "this box must survive parcel shipping and look good enough to be the retail shelf unit." A factory can then propose material instead of guessing.
FAQ
Is corrugated recyclable and eco-friendly?
Yes — corrugated is one of the most recycled materials in the world. Both corrugated and paperboard are paper-based and widely recyclable, which is why brands moving away from plastic often switch to them first.
Can I print full color directly on corrugated?
On E-flute, yes, with good results. On thicker B/C-flute, direct printing looks coarser; brands needing sharp graphics use litho-lamination — a printed paper sheet glued to the corrugated board.