Materials · 5 min read
Single Wall vs Double Wall Boxes Explained
When single wall corrugated is enough, when double wall pays for itself, and how to compare the true landed cost.
What actually differs
Single wall corrugated has one fluted medium between two liners. Double wall adds a second fluted medium and liner, dramatically increasing stacking strength, puncture resistance, and rigidity.
Double wall costs more per box, but the comparison that matters is landed cost including damage rates, re-shipments, and customer credits.
Choose single wall when
Products are under roughly 40-50 lbs, shipping is parcel-based, stack heights are modest, and the product itself contributes structural support. Most e-commerce, retail replenishment, and light food distribution fit here.
Choose double wall when
Loads are heavy or dense, boxes are palletized and stacked several tiers high, contents are high-value, or the freight route includes warehousing in humid conditions. Manufacturers shipping parts, equipment, and industrial goods usually land on double wall.