Nowadays corrugated fiber board primarily is made of outer flat sheets of puncture resistant paper, by sandwiching a corrugated short fiber paper in the center which resists crushing under compression and provides cushioning protection to the box's contents. The old corrugated boxes are outstanding source of fiber for recycling in Castle Rock. As a result they can be crushed and baled for cost effective transport to anywhere. Corrugated fiber board is made on high-precision machinery lines known as corrugators. The manufactures of corrugated boxes are generally done for shipping containers. One should not forget that the recycling of corrugated fiber boxes helps countries build a paper and packaging industry without sustainable wood resources.