Corrugated boxes are widely used for packaging and shipping products across industries. Constructed with multiple paper layers, they deliver exceptional strength and durability. The corrugated board used in box production consists of a fluted inner layer and two outer liners (known as facing paper). The wave-shaped flutes create a rigid structure that enhances the box’s load-bearing capacity—so the number of fluted layers and liners directly determines the box’s strength and durability. Based on the layer configuration, corrugated boxes are categorized into single-wall (3-ply) corrugated boxes and double-wall (5-ply) corrugated boxes.

Single-Wall Corrugated Boxes

Composed of two liners and one fluted layer (sandwiched between the liners), single-wall corrugated boxes offer a lightweight yet sturdy structure. Ideal for packaging light to medium-weight products, they are not recommended for heavy items requiring extra protection. We typically advise single-wall boxes for non-fragile goods such as clothing, books, and similar products.

Double-Wall Corrugated Boxes

Featuring three liners and two fluted layers, double-wall corrugated boxes provide enhanced strength and durability thanks to the additional fluted layer. This makes them perfect for heavy-duty and fragile items that demand superior protection during transit. We recommend double-wall boxes for shipping delicate products like furniture, electronic equipment, glassware, and other breakable goods.

Choosing the Right Corrugated Box

The selection between single-wall and double-wall boxes depends on three key factors: product weight, size, and fragility. Single-wall boxes are the cost-effective choice for light to medium-weight items that don’t require extra reinforcement. Double-wall boxes, while slightly heavier and more premium-priced, offer unparalleled protection for heavy or fragile products.

At Shengcai Packaging, we help you select the optimal corrugated box solution tailored to your specific needs—ensuring your products arrive at their destination safe and intact.