How can I reduce the warehouse space used by packaging?
Where packaging space goes, and practical ways to win it back
One effective way to reduce the warehouse space used by packaging is to choose formats that stay compact until they are needed. Mailers with integrated cushioning can reduce the need to store separate protective materials, while expandable formats take up additional space only when filled. WaveBag mailers use patented Wave Technology, a paper cushioning structure approximately 4 mm thick when the mailer is empty. According to Offmar's space-saving documentation, this compact design allows up to twice as many units per pallet compared with bulkier padded mailers.
Key facts
| Cushioning thickness, empty | Approx. 4 mm overall: the paper waves interlock when the mailer is empty |
|---|---|
| Cushioning in use | Approx. 3 mm per side around the item: the structure opens around the product |
| Units per pallet | Up to 2× more than bulkier padded mailers |
| Packing materials | Envelope and cushioning in one structure: no separate bubble layer or void fill to store |
| Instead of small boxes | WaveBag 3D stays flat in storage and expands only when a product is inserted |
| Recyclability | Recyclable with paper, Aticelca 501:2025 Level B (evidence) |
Why packaging takes up so much space
Packaging is bought in bulk and stored long before it is used. Many padded mailers keep most of their thickness even when they are empty, because their cushioning is built to stay permanently bulky. Add rolls of bubble wrap, bags of void fill and stacks of small boxes, and packaging can fill a surprising share of a warehouse, a pallet and a packing area.
For high-volume e-commerce and fulfilment operations, a small difference in the thickness of each empty mailer becomes a large difference when thousands are stored together.
Practical ways to win back space
- Choose packaging that is compact when empty. Compare how many units of each mailer fit in a carton and on a pallet, not only the unit price.
- Combine the envelope and the cushioning. For suitable products, a padded mailer with integrated cushioning can eliminate the need for separate bubble wrap or void fill.
- Replace small boxes where it makes sense. An expandable mailer can stay flat in storage and take shape only at the packing station.
- Standardise sizes. Fewer formats, selected according to your most frequently shipped products, can simplify inventory management and reduce partially used pallets.
- Consider the entire logistics process. Compact packaging can increase the number of units transported per inbound pallet. Choosing the right format for each product can also help reduce unused space in outgoing parcels.
How WaveBag saves space
WaveBag was designed to stay compact until protection is needed. Its patented Wave Technology uses paper waves that interlock when the mailer is empty, for an overall cushioning thickness of about 4 mm, and open around the product once it is inserted. According to Offmar's space-saving documentation, this allows up to twice as many units per pallet compared with bulkier padded mailers.
WaveBag LIGHT is the everyday mailer for small and medium products. WaveBag 3D adds an expandable bottom: it stays flat while stored and opens only when a product is inserted, so for suitable items it can take the place of a small box and void fill.
Space saving only makes sense if the product stays protected. In an independent laboratory test, WaveBag LIGHT was found comparable to a plastic bubble mailer; you can read the results in our answer on protection.
What to ask a packaging supplier
When you compare options, a few concrete questions help: How many units fit in a carton and on a pallet? Does the mailer need any separate protective material? Can it replace boxes for some products? And can the supplier send samples so you can check storage and packing in your own warehouse?
For the cost side of the same decision, see the total cost of e-commerce packaging.
Applies to
Frequently asked questions
How can I reduce warehouse space used by packaging?
Choose packaging that stays compact until it is used: mailers with integrated cushioning instead of separate bubble wrap or void fill, expandable formats instead of small boxes where suitable, and fewer standard sizes. WaveBag's Wave Technology keeps the cushioning about 4 mm thick when the mailer is empty.
Why does our packaging take up so much warehouse space?
Many padded mailers keep most of their thickness even when empty, and they are often stored alongside bubble wrap, void fill and small boxes. Across thousands of units, that adds up to a large share of storage space.
Which mailers take the least storage space?
Mailers whose cushioning stays compact when empty and expands only in use. According to Offmar's documentation, WaveBag mailers allow up to twice as many units per pallet compared with bulkier padded mailers.
Do space-saving mailers protect less?
Space saving should not come from removing protection. In WaveBag, the paper waves interlock when the mailer is empty and open around the product in use, and an independent laboratory test found WaveBag LIGHT comparable to a plastic bubble mailer.
Sources
- Offmar S.r.l., “WaveBag: Space-saving protective packaging” (2026). Available from the WaveBag team on request.
- Are paper padded mailers as protective as bubble mailers? (WaveBag answer)
- WaveBag recyclability: Aticelca 501:2025, Level B (WaveBag evidence page)