For many e-commerce brands, a 3PL starts to make financial sense at around 500–800 orders a month. Pro FS typically works with brands shipping from around 1,000 orders per month, considering products, fulfilment requirements and growth plans as well as volume. Established overseas brands entering the UK may start with lower UK volumes.
What's the short answer?
The 500–800 range is a useful point at which to review the numbers, rather than a rule that applies to every retailer. The right moment depends on the time, space and management effort your current operation needs, as well as your forecast for growth.
Outsourcing can make sense before volume alone becomes difficult to manage. A seasonal sales pattern, a growing product range or a move into new markets can all increase the operational load. Equally, a business with straightforward products and efficient internal processes may choose to keep fulfilment in-house for longer.
What are the tell-tale signs it is time?
Order volume is only one signal. In practice, the pressure on the operation often shows up first in the working day.
- Packing takes over evenings or weekends. Time spent printing labels, packing orders and arranging collections is time that cannot go into product, marketing or customer service.
- Carrier cut-offs are regularly missed. When orders are often held until the following day because packing has not finished, capacity needs attention.
- Storage is overflowing. Stock moving from a spare room or garage into additional space can make the true cost of in-house fulfilment clearer.
- You are hiring mainly to pack orders. A first dedicated packing hire adds cost and management work that should be compared with an outsourced operation.
- International operations are becoming more complex. More destinations can mean more processes, documents and carrier choices to manage.
What is the actual trade-off?
Using a 3PL turns work that may be spread across the founder, team members and available space into a quoted service cost. That cost is visible, which can make it appear higher than doing fulfilment yourself. The fair comparison is not a 3PL quote against zero; it is the quote against the cost of your time, your team, storage, packaging stock and the work that cannot be done while orders are being packed.
A useful comparison also looks ahead. Consider your base forecast as well as peak periods, the number of items in an order, returns, storage needs and any unusual handling. This helps reveal whether a process that works today will still be workable when volume changes.
How do Pro FS's volume requirements map onto this?
We typically work with brands shipping from around 1,000 orders per month, but volume is only part of the picture. We also consider your products, fulfilment requirements and growth plans.
Established overseas brands entering the UK may start with lower UK volumes. Talk to us about your business so we can explore the fit together.
What changes in fulfilment as you grow?
As order flow becomes more regular, ad hoc packing usually needs to become a repeatable pick-and-pack process with stock checks built in. The aim is not simply to pack more parcels; it is to make the operation easier to manage as volumes, product ranges and delivery requirements change.
At volumes above 1,000 orders a month, more attention commonly goes to postal mix: selecting the right delivery options for the order profile and customer promise. Storage turnover matters too. With Pro FS’s day-rate model, a pallet held for 20 days of a 31-day month is charged for 20 days, so the time stock spends on the shelf affects the bill.
Flexibility to manage swings in order volume is also important. Pro FS combines warehouse automation with a flexible team to manage changing order flows, while brands can focus on the commercial work that drives the next stage of growth.
What should you compare before outsourcing?
Ask potential providers to work from the same information: your expected monthly orders, peak volumes, SKUs, average items per order, product dimensions, returns and any special packing requirements. Then check which activities and charges are included, how storage is measured and how the proposal deals with changes in volume.
For a fuller view of the financial comparison, read how to model the total cost of 3PL fulfilment. The goal is to compare proposals on the same basis, not to select a provider from one headline rate.
Frequently asked questions
Is 1,000 orders a month a hard rule?
No. We typically work with brands shipping from around 1,000 orders per month, but volume is only part of the picture. We also consider your products, fulfilment requirements and growth plans. Established overseas brands entering the UK may start with lower UK volumes. Talk to us about your business so we can explore the fit together.
Can I move to a 3PL gradually rather than all at once?
A gradual move is not generally recommended because splitting stock can create stock-availability issues and duplicate costs. It can be possible, however, and a soft launch may sometimes be preferable depending on the circumstances. Discuss the stock plan and commercial implications before deciding.
What if our volume is below the usual requirement?
Volume is only part of the picture. We also consider your products, fulfilment requirements and growth plans. Established overseas brands entering the UK may start with lower UK volumes. Talk to us about your business so we can explore the fit together.
