When Willow & Grain started looking for sustainable packaging companies, the brief sounded simple: protect heavy ceramic goods, look good on a retail shelf, and meet the brand’s 2026 plastic-free goal. It was not simple.
The Portland-based home goods brand ships about 2.4 million units a year across 120 SKUs. Its old mix of plastic air pillows and molded foam kept online damage at roughly 7%, but it also created a recycling headache for customers. Retail partners were already asking for protective packaging materials with at least 30% recycled content and no plastic film.
“We didn’t want to trade damage for green guilt,” says Maya Chen, head of operations at Willow & Grain. “That was the line I kept repeating in every meeting.”
The Company Behind the Goods Packaging Problem
Willow & Grain is not a giant. It sells mugs, candles, vases, small lamps, and kitchen jars. Its goods packaging has to handle weight from 0.8 kg to 4.5 kg. Some items are fragile. Some are heavy. Some are both.
Before 2024, the brand used a double-wall corrugated shipper, plastic air pillows, and molded pulp for retail boxes. The retail box looked fine, but the ecommerce shipper was the weak point. Corners crushed. Handles tore. Damage claims were 7% online and 3% in retail.
They interviewed three sustainable packaging companies. Each had a different angle: one pushed molded fiber, one pushed paper honeycomb, one pushed lightweight corrugated. None asked to see their parcel data first. That surprised Maya. “They wanted to sell material, not solve the system.”
Why Their Old Protective Packaging Materials Hit a Wall
The old protective packaging materials were not all bad. They were cheap, light, and easy for packers to use. But they failed when a 4.5 kg ceramic lamp was dropped from 24 inches. The brand’s third-party test showed corner crush in 4 out of 10 parcels. That was enough to trigger a redesign.
There was also a shelf problem. Retail buyers wanted a box that could sit on a table without looking like a shipping carton. The old shipper was functional, not display-ready. So the goods packaging team needed a structure that could protect and present. They had tried cardboard heavy duty enough for 20 kg, but not for a 4.5 kg lamp with a thin corner.
Budget was tight. The packaging team had a target of no more than 5% increase in total packaging cost per unit. That target became the filter for every idea. “We could not fall in love with a material and ignore the math,” Maya says.
Choosing Eco Friendly Packaging Materials Without Losing Strength
The team tested five insert designs. They included molded pulp, recycled corrugated fitments, paper honeycomb, and a hybrid paperboard frame. The key question was whether eco friendly packaging materials could survive parcel networks without adding too much weight.
The best early result came from a heavy duty carton box with a die-cut paper honeycomb insert. The board was 44 ECT double-wall, made with 90% recycled fiber. It passed ISTA 3A drop tests for the 4.5 kg lamp, but the first prototype weighed 12% more than the old shipper. That extra weight mattered: shipping cost rose about 3% for ecommerce orders.
Material cost was another trade-off. The honeycomb insert cost 18% more than plastic air pillows. But when they factored in damage claims, returns, and customer service time, the total cost per shipped order dropped by $0.42. “That was the number that got finance on board,” Maya says. Most sustainable packaging companies pushed a single material. Willow & Grain pushed a system.
They also switched to water-based ink and FSC-certified liner. The new pack used no plastic film. The only plastic left was a small tape strip, which they later replaced with paper tape. For a brand that had talked about cardboard heavy duty for years, this was the first time the material actually matched the claim.
The First Run: Heavy Duty Carton Box Trials and Errors
The first production run was not smooth. The supplier delivered 1,000 heavy duty carton boxes with a lamination problem. Humidity in the Portland warehouse caused the recycled liner to separate at the seams. About 12% of the first batch had to be reworked. Maya calls it “a humbling week.”
Then the die-cut insert fit was too tight. Packers had to force the lamp into the tray, which cracked two units. The team measured the gap and found a 1.5 mm tolerance issue. A small change, but it took three days to get the new die.
The first 1,000 units shipped with a 5.8% damage rate, higher than the old packaging. That was a low point. “We had spent six months and we were worse,” Maya says. But the data showed the failures were concentrated in one insert corner. After a redesign, the next 1,000 units came in at 1.9% damage. The sustainable packaging companies had promised better, but the brand had to prove it on its own line.
An unexpected benefit showed up on social media. Customers started posting unboxing videos because the paper honeycomb looked different. The brand did not plan for that. It was not a sales driver on its own, but it gave the marketing team a story to tell.
What Other Brands Can Learn from This Switch
Nine months after the switch, Willow & Grain had cut plastic use by 78% across its ecommerce packaging. Online damage settled at 1.9%, and retail damage at 1.2%. Packaging cost per unit rose 4%, but return and claim costs fell 22%. The brand still uses some molded pulp for odd-shaped items because paper honeycomb is not perfect for every SKU.
Maya’s advice for other brands is blunt: ask sustainable packaging companies for test reports, not brochures. Start with your own damage data. Run drop tests. Involve the fulfillment team early. “The material is only half the project,” she says. “The other half is the packer, the tape, the training, the returns desk.”
Willow & Grain is now testing a reusable tote for local delivery and a lighter-weight mailer for small goods. The team is also reviewing every eco friendly packaging materials supplier against a scorecard that includes recycled content, repulpability, and drop-test performance. The goal is not a perfect box. It is a box that protects the product, the customer experience, and the brand’s sustainability promise.
For brands watching the shift, the lesson is not that one material wins. It is that sustainable packaging companies can help, but only if the brand brings its own data and stays involved. The best protective packaging materials are the ones that survive the real journey, not just the sample table. And for heavy items, a heavy duty carton box is not a slogan. It is a spec, a test, and a packer who trusts it.
