singleface

Single-face is a term used in corrugated packaging to describe a board constructed by bonding a single sheet of fluted paper to one linerboard. The resulting material has a flat liner on one side and the flute-backed surface on the other, making it the simplest form of corrugated board. It is generally used for protective wrapping and cushioning rather than as a standalone carton.

Construction and materials

Single-face boards use standard flute profiles (such as A, B, C, or E) bonded to kraft or linerboard with starch-based adhesives. The overall thickness varies with the flute size, typically ranging from about 2 to 4 millimeters. Some versions are coated or laminated to improve moisture resistance or to provide a writable or print-friendly surface on the liner side.

Applications

Common uses include protective wrap for shipments, internal cushioning inside boxes, edge protection for fragile items, and as dunnage or padding during transit. It may be supplied as roll stock or pre-cut sheets and can be laminated or combined with other materials to meet specific packaging needs.

Advantages and limitations

Advantages of single-face board include lightweight characteristics, cost efficiency, and good cushioning for light to medium-duty applications. Limitations include lower rigidity and strength compared with double- or triple-wall boards, limited load-bearing performance, and sensitivity to moisture unless adequately treated or laminated. It is generally not suitable for forming standalone cartons.

Manufacturing and availability

Single-face is produced on standard corrugated equipment and is widely available from packaging suppliers. It is recyclable with other corrugated material when not laminated with moisture-impervious coatings. Related terms include single-wall, double-wall, and triple-wall corrugated boards.