Key Takeaways
- Most brands should outsource fulfillment between 20 and 50 orders per day.
- If founder/team time spent on shipping exceeds 15 hours/week, you're paying more in opportunity cost than a 3PL would charge.
- Stockouts and shipping errors compound: a 3% error rate costs more in refunds and bad reviews than the entire 3PL bill.
- Switching earlier than you think is usually cheaper than switching later under pressure.
Why founders wait too long to outsource
Self-fulfillment feels free because the labor is yours. But the real cost is the customer-acquisition, product, and partnership work that isn't happening while you're packing boxes. By the time the pain is obvious, you're usually already losing money to errors, stockouts, and missed shipping promises.
What are the five triggers for outsourcing fulfillment?
- Orders per day — Once you cross ~20 orders/day, self-fulfillment becomes a part-time job. At ~50/day it's a full-time job for one person.
- SKU count — Above ~50 SKUs, manual pick paths and inventory counting start producing errors faster than you can fix them.
- Returns rate — If returns are >3% and you're processing them yourself, you're losing hours per week to restocking and refunds.
- Hours per week — If you or a team member spend >15 hours/week on shipping, the loaded labor cost typically exceeds what a 3PL would charge.
- Stockouts and errors — Two stockouts a month or a >1% shipping-error rate are signals that the system has outgrown manual operations.
How do you do the math?
Take your current monthly orders, multiply by an all-in 3PL cost of $4.00–$5.00/order (ex-postage), and add storage. Compare that to your current loaded labor cost (hours × fully-loaded hourly rate, including the opportunity cost of the work not being done) plus packaging, software, and the rent allocated to your shipping area.
For most brands above 600 orders/month, the 3PL number is lower — and that's before counting the error and stockout costs.
What should you do before switching?
- Get all SKUs into a clean spreadsheet with barcodes, dimensions, weights, and case packs.
- Document your packaging spec (box sizes, dunnage, inserts) so the 3PL can replicate it.
- Audit your last 90 days of orders for average order value, average units/order, and return rate — these drive the 3PL quote.
- Notify your manufacturer of the new ship-to address before placing the next PO.
Want a quote on fulfillment for your brand?
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