Packaging optimisation means getting the pack to do its job with the least material, the least bench time and the least chargeable volume. In practice it is four decisions: how many formats to hold, what size each should be, how the product is held inside, and how the materials present at the bench. Everything else follows from those.
Optimisation is four decisions, not a hundred
Packaging improvement projects stall because they are framed as a review of everything. In practice almost all of the value sits in four decisions, and each can be made independently of the others.
- How many formats the operation should carry.
- What size each format should be.
- How the product is held inside it.
- How the materials present at the pack bench.
Decision one: ladder depth
There is a genuine tension here and it is usually resolved badly. A deeper ladder fits each order more closely, which helps carriage and reduces fill. A shorter ladder packs faster, takes less bench and racking space, and gives you fewer lines to run out of.
Optimise purely for fit and you end up with eleven sizes and a decision on every order. Optimise purely for simplicity and you ship air. The answer is a deliberately designed short ladder whose rungs land in sensible carrier bands - which needs both your SKU dimensions and your carriers' thresholds. See packaging for fulfilment.
Decision two: rung placement
Once you know how many rungs, where they sit is an arithmetic problem rather than a judgement one.
- Plot your SKUs by their largest dimension and by volume of orders.
- Look for natural clusters rather than spreading rungs evenly.
- Check each candidate size against carrier band thresholds - a rung just over a band is the worst possible placement.
- Allow for inner protection in the internal dimension, not afterwards.
- Validate against the top 20 SKUs by order volume before committing.
Where a cluster is large enough, a made-to-size carton for that cluster usually beats the nearest stock size on delivered cost.
Decision three: how the product is held
This is where damage is decided, and it is a different question from how much cushioning to use. If the failure mode is movement - which it usually is - the answer is restraint rather than padding.
| Need | Method | Why |
|---|---|---|
| Stop the product moving | Fitted insert, partition, cut foam cavity | Loose fill settles in transit and the void returns |
| Protect a finished surface | Interleaving, soft-grade foam | Loose fill can itself cause scuffing |
| Absorb a genuine drop | Cushioning specified by grade and thickness | Under-specified material bottoms out on first impact |
| Resist stack load | Board grade, corner boards, square builds | Internal cushioning does nothing about compression |
Matching the method to the need.
See protective packaging and foam packaging.
Decision four: bench presentation
The least glamorous and frequently the highest-return decision at volume. Pack time is mostly reaching, cutting and deciding.
- Every material within arm's reach of the packer, in the order it is used.
- Replenishment without stopping the bench.
- A written standard per SKU group, so no judgement calls are required.
- Fewer components, each doing one job.
A pack bench designed this way is faster and more consistent, which means the damage rate becomes measurable and therefore improvable - see pick and pack services.
Sequencing and measurement
Change one thing at a time, highest-volume format first, and measure before moving on. Changing four things simultaneously makes it impossible to attribute the result, which is how businesses end up repeating the exercise every two years.
Measure material per order, pack time, carriage band and damage rate. Those four tell you whether optimisation actually happened. The structured version is a packaging review.
The short version
- Optimisation is four decisions: ladder depth, rung placement, restraint and bench layout.
- Place rungs at carrier bands, not evenly across SKU sizes.
- If the product can move, restraint beats cushioning.
- Pack time is mostly reaching, cutting and deciding.
- Change one thing at a time and measure before the next.
Frequently asked questions
Where should packaging optimisation start?
With the box ladder, because it touches every order, costs nothing to change and makes the other three decisions easier.
How do we balance fit against simplicity?
By designing the ladder against carrier bands rather than against SKU dimensions alone. A rung that fits well but sits just over a threshold is worse than a slightly larger one that sits under it.
Is automation part of optimisation?
It can be at high volume, but it comes after the format decisions - automating an inefficient pack simply produces inefficient packs faster.
How often should this be redone?
When the range changes materially, when a carrier re-rates, or when somebody adds a box size. Not on a calendar.
Can WSUK do this as part of running our fulfilment?
Yes - see packaging for fulfilment and fulfilment services. Specifying the pack from the bench outward is the point of doing both together.