Is It Cheaper to Fulfil Your Own Orders or Use a 3PL?

The visible costs everyone counts

When founders calculate the cost of packing their own orders, they typically count three things: packaging materials, shipping labels, and the postage itself. At 50 orders per day, materials (boxes, satchels, void fill, tape, labels) run $1.80 to $3.00 per order depending on product size and packaging quality. Postage varies by carrier and destination but averages $8.50 to $12.00 for a standard domestic parcel. These are the numbers that appear on receipts and invoices, so they are the numbers founders use.

This visible cost of $10.30 to $15.00 per order is what gets compared against a 3PL quote of $4.50 to $7.00 per order plus shipping. The 3PL looks more expensive because the comparison is incomplete. The founder is comparing the 3PL's full cost against their own partial cost.

The hidden costs nobody tracks

Direct labour is the largest hidden cost. At 50 orders per day with an average of 1.8 items per order, the pick, pack, and label workflow takes 4 to 5.5 hours of continuous work at award wages of $25 to $28 per hour. That is $100 to $154 per day, or $2,500 to $3,850 per month in direct labour alone. Most founders either do this themselves (valuing their time at zero) or pay a casual employee but do not allocate that cost per order.

Space costs are the second invisible line item. A 50 order per day operation with 40 to 80 active SKUs needs 30 to 60 square metres for racking, a packing station, consumables storage, and a dispatch staging area. In Western Sydney, warehouse space runs $180 to $280 per square metre annually. In inner suburbs, $250 to $350. That is $5,400 to $21,000 per year that gets absorbed into rent rather than attributed to fulfilment.

Shipping rate inefficiency is the third hidden cost. A brand shipping 1,000 to 1,500 consignments per month negotiates rates based on that volume. A 3PL shipping 50,000 to 200,000 consignments per month across all clients negotiates a fundamentally different rate structure. The gap is typically 15% to 25% per consignment, which at 50 orders per day adds $1.50 to $3.00 per order in cost that the brand never sees because they have no benchmark.

Error costs are the fourth hidden item. At a 3% error rate (common for manual operations without barcode scanning), 1.5 orders per day ship incorrectly. Each error costs $25 to $40 to resolve: reship cost, return shipping, replacement product, and customer service time. That is $37.50 to $60.00 per day, or $1.30 to $2.05 spread across the full order base per order.

Running the real numbers

Adding the visible and hidden costs together for a 50 order per day Sydney-based Shopify brand: materials at $1.80 to $3.00 per order, labour at $2.50 to $3.25, space at $0.45 to $1.40, shipping rate gap at $1.50 to $3.00, and error costs at $1.30 to $2.05. The total true cost per order is $7.55 to $12.70, plus postage of $8.50 to $12.00. All in, that is $16.05 to $24.70 per order.

A 3PL handling the same profile typically charges $4.50 to $7.00 for pick, pack, and handling, plus $7.50 to $10.50 for shipping at their aggregated rates. All-in cost: $12.00 to $17.50 per order. The 3PL is not just operationally better. It is structurally cheaper at this volume because it spreads fixed costs across thousands of clients and negotiates carrier rates at scale.

The calculation becomes even more decisive when you factor in what the founder would be doing with the 4 to 5 hours per day currently spent packing. If that time generates even $50 per hour in sales, marketing, or product development value, the opportunity cost is $200 to $275 per day, or $5,000 to $6,875 per month. That figure alone exceeds the total monthly 3PL bill for most brands at this volume.