Most businesses that start looking at contract packing are not making a strategic decision to outsource. They are trying to fix a packaging problem: the pack bench cannot keep up, damage rates are climbing, the storeroom is full of carton sizes, or peak season breaks the whole operation. Contract packing looks like the answer because it makes the problem someone else’s.
Before you hand your product to a co-packer, it is worth asking whether a better packaging system would solve the same problem in-house, for less money, without giving up control of how your product reaches your customer. Usually it would. This guide walks through the real trade-off.
Key points
- The reasons businesses outsource packing (capacity, damage, labour, space, SKU sprawl) are mostly packaging-design problems, not strategy problems.
- Contract packing costs you margin, control, minimum volumes, lead time, and distance from your own customer experience.
- A smart in-house packaging system, right-sized cartons, faster sealing, the right formats, custom design, one supplier, fixes most of those problems at a fraction of the cost.
- Contract packing still makes sense for regulated filling and specialised equipment you will never own. Even then, the packaging around it should be specified deliberately.
- The goal is packaging that meets your end goal: your product arriving at your customer intact, on brand, and at the lowest landed cost.
Why businesses look at contract packing
Almost every enquiry comes down to one of these, and each has a packaging-side fix:
- “We can’t pack fast enough.” Usually the pack method is slow: multiple passes of hand-held tape, oversized cartons that need void fill, no standard process. A dispenser-applied seal and right-sized cartons can lift a bench’s throughput substantially without adding people.
- “Our damage rate is too high.” Usually the carton is under-specified, over-sized so contents move, or sealed with tape that peels. Matching board grade, fill and seal to the journey fixes this.
- “Packaging labour is eating our margin.” Slow, inconsistent packing needs more hands. A standardised system with fewer SKUs and a faster seal needs fewer.
- “We’re out of space.” Too many carton and mailer sizes, and oversized packaging, fill a storeroom. Rationalising to a few right-sized formats frees it up.
- “Peak season breaks us.” A simple, standardised pack process that a casual can learn in an hour scales far better than a complex one.
- “We don’t have time to sort packaging out.” One supplier who designs the system and supplies the whole dispatch line removes the project.
What contract packing actually costs
- Margin. A co-packer builds in labour, overhead and profit on every unit. That is margin leaving your business permanently, not a one-off fix.
- Control. You no longer see how your product is handled, sealed and presented. Quality issues surface at the customer, not the bench.
- Minimum volumes and lead times. Co-packers run to schedules and minimum runs. A rush order or a small batch is hard or expensive.
- Lock-in. Once your product, artwork and tooling sit with a co-packer, moving is disruptive. Pricing power shifts to them.
- Distance from your customer. The unboxing, the brand impression, the little decisions about how a parcel feels, all move outside your business.
- Freight double-handling. Product often ships to the co-packer and back out again.
The in-house alternative: a smart packaging system
The same money that would fund a co-packing arrangement, spent once on getting your packaging right, usually delivers a better result you keep control of.
1. Right-size the cartons and cut the SKUs
Audit your real order profiles and match each to the smallest carton or mailer that protects it. Fewer, better-fitting sizes cut material, void fill, dimensional-weight freight, storage and pack time all at once. This is the single biggest lever.
2. Speed up the seal
Packers often add extra passes of plastic tape for security. One strip of water activated tape on a dispenser seals a carton in a single pass, in independent testing about 21% faster than a hand gun and using about 8% less tape per carton, with a stronger, tamper-evident bond. On a busy bench that is real labour recovered.
3. Match the format to the product
Soft and flat goods usually ship 20 to 40% cheaper in a paper mailer than a box, because a mailer avoids the dimensional-weight penalty. Fragile-but-not-boxable goods fit a honeycomb padded mailer. Getting the format right removes cost and damage together.
4. Design the packaging so the pack step is simple
A carton or insert designed to your product means the packer drops the item in, closes, seals, done. No cutting void fill to size, no wrestling with an awkward fit. Custom design pays back fastest exactly where a business is considering outsourcing because packing is hard.
5. Buy the whole line from one supplier
Cartons, mailers, tape, void fill and film from one place, specified to work together, removes the “sort out packaging” project that pushes people toward a co-packer in the first place.
A rough comparison
Take a business shipping 2,000 parcels a week that is quoted a co-packing rate of, say, an extra 60 cents to a dollar per unit over doing it in-house. That is roughly $60,000 to $100,000 a year of margin, every year, for as long as the arrangement runs. A one-off packaging review, a set of right-sized cartons, a dispenser and a standardised process is a fraction of one year of that, and the saving compounds because you also cut freight, damage and storage. The co-packer fixes the symptom and takes a cut forever; the packaging system fixes the cause once.
When contract packing genuinely makes sense
- Regulated filling (pharmaceutical, therapeutic, some food) where the compliance burden and equipment are genuinely specialised.
- Processes you will never bring in-house, such as high-speed liquid filling, sachet or stick-pack forming, or blister sealing, where the capital and expertise do not make sense for your volume.
- A short-term capacity bridge while you build your own capability.
Even in these cases, the secondary packaging, the cartons, the protection, the seal, the shipper that carries the filled product to your customer, is yours to specify. Getting that right still saves money and protects the brand.
How Carewell Group helps you do it in-house
Carewell Group is an Australian packaging manufacturer and supplier. We do not take your product off you; we make in-house packing work.
- Packaging review: we look at your real order profiles and find the right-sizing, format and process changes that cut cost and damage.
- The whole dispatch line from one supplier: cartons, kraft mailers, honeycomb mailers, water activated tape and dispensers, void fill and film.
- Custom design and engineering: a carton, insert or seal built to your product so the pack step is fast and consistent.
- Flexible minimum orders: we work to your volume so you can standardise without over-committing.
- National supply from NSW warehousing, with recyclable, mono-material options that meet retailer scorecards and APCO reporting.
Carewell is certified to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018, and is an APCO member. Request a packaging review, a quote and samples or call +61 (02) 8760 1491.
Frequently asked questions
Is contract packing cheaper than in-house packing?
Rarely, once you count the margin the co-packer keeps on every unit for the life of the arrangement, plus freight double-handling and lost control. A one-off investment in the right packaging system usually costs less than a single year of co-packing fees and keeps the saving in your business.
Why do businesses outsource packing if it costs margin?
Usually to fix a packaging pain, slow bench, high damage, no space, peak overload, that feels easier to hand off than to solve. Most of those pains are packaging-design problems with an in-house fix.
What actually cuts packaging cost in-house?
Right-sizing cartons and cutting SKUs, faster single-pass sealing, matching the format to the product (box versus mailer), custom packaging that makes the pack step simple, and buying the line from one supplier.
When should I use a contract packer?
For regulated filling and specialised processes like high-speed liquid filling or sachet forming that you will never bring in-house. Specify the secondary packaging around it yourself.
Can Carewell help if I keep packing in-house?
Yes. We run a packaging review, supply the whole dispatch line, design custom packaging to your product, and work to your minimum order quantity.
Written by Alif Vasaya, digital and content strategy, Carewell Group. Carewell Group is an Australian packaging, food packaging, tape, industrial safety and 3PL supplier serving all of Australia. Last updated 10 September 2026.