Volume pricing in packaging is not a smooth curve. It steps, and the steps are where the fixed costs of a production run stop being a meaningful share of the unit cost. Knowing where they are is worth more than negotiating the percentage.
What creates the steps
Setup. A production run has to be scheduled, the line brought to stability, and the first output checked. Those costs are the same whether you make five hundred or five thousand, so on a short run they dominate and on a long one they vanish.
Material purchasing is the second. Resin is bought in lots, and a bigger order lets a supplier buy better. The saving is real and it is passed on unevenly.
Tooling amortisation is the third, and for a custom item it is the largest. It produces a curve that keeps falling for a long way rather than a couple of steps.
Where the steps usually sit
There is a first step quite early – often around the point where a run becomes worth scheduling properly – and then another at container quantity, where freight per unit drops sharply because you are filling a container rather than sharing one.
Beyond that the curve flattens. Doubling again saves a little, not a lot. Knowing this stops you over-ordering for a discount that is not there.
Ask for the schedule, not a single price
Most suppliers will quote a price schedule – a price at three or four quantity bands. Ask for it. It takes one email and it shows you where the value is.
The useful part is often discovering that a modest increase in order quantity takes you into a band where the unit price drops enough to pay for the extra stock. That is free money and it is invisible if you only ever see one price.
The storage offset
Buying more to reach a band costs storage and ties up cash. Packaging does not degrade, which makes holding stock unusually low-risk compared with most consumables – but it is not free, and a buffer sized for a peak that never arrives is capital sitting still.
Work the two against each other: the discount against the carrying cost. On bulky packaging the freight saving usually wins; on small dense items it often does not.
What to watch for
A price that is valid only at a quantity you cannot store, or a band that requires a commitment you cannot honour. Both are common and both turn a good number into a bad decision.
And a schedule that expires. Resin costs move; ask for the validity period alongside the bands.
Why the last step is often the wrong one to chase
The deepest discount band usually requires a quantity that exceeds a sensible stock holding, and the discount per unit at that level is small. Compare the extra discount against the carrying cost – cash tied up, space, and the risk that the specification changes while the stock sits.
Our experience is that the second band is where most buyers should be. The first meaningful step captures most of the available saving and the quantity is usually absorbable.
What we can do
We supply PP honeycomb panels and will quote a price schedule rather than a single number. Tell us your monthly usage and we will show you where the bands are – including the honest answer when the bigger quantity is not worth holding.