Warehouse Dunnage and Void Fill: Protecting Products During Shipping

Warehouse Dunnage and Void Fill: Keeping Products Safe in Transit

The space between your product and the outside of the shipping carton is where damage happens—or doesn’t. Proper dunnage and void fill selection at the warehouse packing station prevents the shifting, vibration, and impact damage that generates returns, claims, and unhappy customers.

Types of Void Fill Materials

Air pillows provide lightweight cushioning that adapts to irregular spaces with minimal material cost. Kraft paper offers recyclable cushioning suitable for most products, produced on-demand from paper crumpling machines. Foam-in-place creates custom-fitted protective molds for high-value or fragile items. Corrugated inserts and dividers provide structural separation between items within a carton. Biodegradable packing peanuts fill large voids economically but create cleanup challenges for recipients. Each material suits different product profiles and customer expectations.

Matching Protection to Product

Void fill selection should match the fragility, weight, and value of shipped products. Glass bottles and ceramics need cushioning that absorbs impact energy. Heavy metal parts need blocking that prevents shifting. Electronics need anti-static materials that prevent ESD damage. E-commerce fulfillment packaging must balance protection against customer experience—excessive packaging frustrates environmentally conscious consumers.

Cost and Sustainability Considerations

Void fill materials represent a significant ongoing expense for high-volume shipping operations. Right-sizing cartons to minimize void space reduces material consumption and dimensional weight shipping charges simultaneously. Automated packaging systems that create custom-sized boxes for each order virtually eliminate void fill needs while reducing carton material usage by 30-40%.

Sustainable packaging materials align with consumer preferences and corporate responsibility goals. Recyclable paper-based void fill, biodegradable options, and reusable packaging programs reduce environmental impact. 3PL providers should offer packaging material options that balance protection, cost, and sustainability.

Dunnage requirements for containerized shipments and truckload freight differ from parcel packaging—airbags, load bars, and lumber blocking secure palletized loads against transportation forces. Packaging optimization programs should analyze damage data to identify where protection improvements deliver the greatest return.