Contract packaging is the backbone of countless product-based businesses—it's how you scale without building a factory. Whether you're launching your first batch or ramping up production, knowing what to ask and expect can save you thousands and months of headaches.
What Exactly Is Contract Packaging?
Contract packaging (also called co-packing) means outsourcing your product assembly, filling, labeling, and packaging to a specialized facility. You supply the product or raw materials, the co-packer handles the labor-intensive work, and you get finished goods ready to ship. It's ideal for brands that need flexibility without capital-heavy equipment investments.
The distinction matters: some co-packers handle just the final packaging phase (boxing, labeling), while full-service providers manage formulation, filling, labeling, quality checks, and even kitting. Know which stage you need handled before you reach out.
How Much Does Contract Packaging Cost?
Pricing typically breaks into two buckets: setup fees and per-unit costs.
Setup or changeover fees usually run $500–$3,000 depending on complexity. A simple label-and-box job costs less than a multi-step assembly with custom inserts. If you're running multiple SKUs, expect fees for each line change.
Per-unit pricing depends heavily on:
- Product type and complexity
- Order volume (500 units vs. 50,000 units)
- Packaging materials you provide vs. what the co-packer sources
- Labor intensity (manual assembly costs more than automated filling)
Expect ranges from $0.50–$5+ per unit for basic packaging, climbing to $10–$20 per unit for heavily assembled or kitted products. Get quotes from at least three providers; prices vary wildly by region and capability.
Typical Timelines: What Should You Expect?
Most co-packers need 2–4 weeks lead time for standard orders once setup is complete. Custom packaging design or sourcing adds 2–6 weeks.
Here's a realistic timeline for your first run:
- Week 1–2: Quote, sample review, contract signing
- Week 2–4: Setup, test runs, quality approvals
- Week 4–6: Full production and packaging
- Week 6–8: Quality inspection and shipment
Rush jobs are possible but typically cost 20–50% more. Plan ahead if you're launching seasonally or hitting a sales deadline.
What Should You Ask Potential Co-Packers?
Before signing anything, get clear answers on:
- Equipment and capabilities — Do they have the machinery for your product type (liquid fill, solid assembly, etc.)?
- Capacity — Can they handle your current volume and scale if you grow 3x next quarter?
- Quality standards — What certifications do they hold (FDA, GMP, ISO)? What's their defect tolerance?
- Material sourcing — Do you provide boxes and labels, or do they source and charge markup?
- Minimum order quantities (MOQs) — Some require 5,000 units minimum; others start at 500.
- Insurance and liability — Are they insured? What's their claim process if something breaks?
- Turnaround on samples — Can they produce a test batch to approve before full production?
Platforms like Mercoly let you compare and find trusted contract packaging providers in one place, making it easier to vet multiple options side-by-side.
Choosing the Right Partner
Start by defining your non-negotiables: Is geographic proximity critical for you? Do you need USDA or FDA compliance? What's your hard deadline?
Visit facilities if possible—or at minimum, request videos and references. Ask to speak with current clients about reliability and communication. A co-packer that's cheap but misses deadlines or ships 5% defect rates will cost you far more in customer refunds and lost sales.
Check their production calendar too. Some facilities are backed up 8–12 weeks; others have capacity within days. If you're on a tight launch window, availability matters as much as price.
Frequently Asked Questions
Q: Can I use my own packaging materials, or must I buy from the co-packer? You can typically supply your own boxes, labels, and inserts, though many co-packers charge a "bring-your-own-material" fee ($200–$500) to account for handling and storage. Some have preferred vendors and offer better pricing on bulk material orders, so compare total cost before deciding.
Q: What if I need to make design changes mid-production? Changes after setup has begun usually require a stop-start with new setup fees, adding 1–2 weeks and $500–$2,000 in costs. Approve all artwork and samples in writing before production begins.
Q: Do co-packers store finished goods, or do I need to arrange pickup? Most offer short-term warehousing (30–90 days free or cheap), but long-term storage costs $0.50–$2+ per pallet monthly. Confirm storage terms and costs upfront so you're not surprised by the bill.
Ready to scale? Compare verified contract packaging providers and get competitive quotes today.