A cardboard structure is anything made from cardboard. This could be a complicated model or something as simple as a box. One of the main uses of cardboard is to package items and goods.

It was a stealth assault, the flattened boxes piling up ... In the cardboard, the paper won’t stretch, so the corrugations ...

Corrugated cardboard boxes are perfect for protecting your outdoor plants from frost during winter. Here's why they help and ...