Kitting is taking separate items and combining them into one unit that gets sold, picked and shipped as a single thing. A phone with a charger and a case. Three bottles shrink-wrapped as a club pack. A mower with the blade, bolts and manual in one carton. The components already exist. Kitting gives them a new identity and a new item number.
It's simple work in the sense that anybody can picture it. It's not simple in the sense that the decision of what to kit, where to kit it and when is where companies lose money without noticing.
The three kinds of kits
Promotional bundles exist for a window. A buy-two-get-one, a holiday pack, a value bundle built to hit a price point for one retailer's circular. These have a start date and an end date, and what happens after the end date is the part people don't plan for.
Retail and club packs are a format requirement. The club channel wants a two-pack, the grocery chain wants a shipper of twelve, the same product needs three different configurations for three different accounts. The product doesn't change. The presentation does.
Component kits ship a main product with everything it needs. Accessories, hardware, documentation, a warranty card. Sometimes the components come from different suppliers and different countries, and the kit is the first place they meet.
The question underneath all of it: where does the kitting happen
You can kit at the point of manufacture or you can kit downstream, closer to the customer. That single choice drives most of the economics.
Kitting at the plant is cheaper per unit. The line is already running, the labor is already there, and the packaging can be designed into the process. If you know with confidence that these items will always sell together, kit them at the source and stop reading.
Kitting downstream costs more per unit and buys you something the plant can't. Your components stay as individual items, available to sell separately, until demand tells you what to build. You commit inventory to a configuration at the last responsible moment instead of at the first possible one.
That flexibility is worth real money when demand is uncertain, and worth nothing when it isn't. Most of the bad kitting decisions come from picking the wrong one of those two situations.
When downstream kitting pays
When the same components sell both ways. If a lens sells on its own and also goes into a camera bundle, kitting at the plant forces you to guess the split months in advance. Kit downstream and you decide in the same week you get the orders.
When the kit belongs to one account. A retailer-specific pack, built to one buyer's spec, for one program. Building that into the manufacturing line means retooling for a configuration that might not repeat.
When components arrive from different places. If the main product comes from one supplier and the accessory from another, they have to be brought together somewhere. A warehouse that's already receiving both is the natural place.
When the program is short. Limited-time offers, seasonal packs, anything with an end date. Committing production capacity to a six-week promotion is usually the expensive way to do it.
When it doesn't
When the pairing is permanent. Batteries in the box, cable with the appliance. Kit it at the source.
When volume is enormous and stable. At high enough volume, the per-unit labor difference overwhelms the flexibility benefit, and an automated line beats hand assembly every time.
When the kit stores badly. This one gets missed. A kitted unit frequently has worse cube than its components did separately. Three items that nested neatly on a pallet become an awkward shape that wastes space, and now you're paying storage on air. Before committing to a kit configuration, work out how many finished kits fit on a pallet and compare that against the components. Sometimes the storage cost eats the savings.
The de-kitting problem
This is the part that catches people.
A promotion is built, the kits go out, and the sell-through comes in under forecast. Now there are several thousand kits sitting in inventory that the market wants as individual items. Somebody has to take them apart.
De-kitting costs more than kitting did. The work is slower, packaging gets destroyed and has to be replaced, product gets damaged in the process, and it's usually urgent because the components are needed for something else. A kitting program that looked profitable at the front end can lose money entirely on the back end.
The fix isn't complicated. Before the first kit is built, decide what happens to the ones that don't sell. Sometimes that means kitting in smaller batches and holding components. Sometimes it means designing the pack so it can be opened without destroying the inner units. Sometimes it means accepting the risk with eyes open. Any of those beats discovering the problem in January.
What it costs
Kitting is priced on labor, and labor is priced on time. A warehouse quoting a per-unit rate before anyone has built one is estimating, and the estimate will be wrong in one direction or the other.
The honest way to price it is to build a sample batch, time it, and set the rate from what actually happened. A configuration that looks like forty seconds a unit on paper can run ninety once you account for staging components, handling packaging, and the QC check. It can also run twenty, if the layout is right.
On top of labor, expect charges for receiving and storing the components, the packaging materials if the warehouse is supplying them, and the storage on the finished kits.
What to have ready before the first run
A bill of materials that lists every component, with part numbers and the quantity of each per kit.
A new item number and barcode for the kit itself. The kit is a distinct product and needs its own identity in your system and in the warehouse's. This gets forgotten more often than anything else on this list.
All components on hand, or a firm arrival date for each. A kitting line stops for a missing washer just as completely as for a missing main unit.
Packaging specified and sourced. Cartons, shrink film, inserts, labels. Decide who buys it and where it gets stored.
The retailer's requirements if the kit is going into retail. Label placement, carton markings, pallet configuration, anything the receiving customer will reject the shipment over.
A written quality standard. What a correct kit looks like, what gets checked, and what happens when something is short.
A volume and a schedule. How many, by when, and whether this repeats.
And a plan for the leftovers.
How we approach it
Clark has been building kits and displays for a long time, and the process behind it is most of the value. Where we can, we'd rather build a sample run before quoting, so the number reflects your product instead of an average. When a sample isn't available we'll build a mockup here against your kitting instructions and quote from that, and we'll tell you which of the two the number is based on. We'll also tell you if we think you should be kitting at the plant instead, because a program that doesn't make sense won't last and neither will the account.
If you're weighing a kitting program, the fastest way to get a real answer is to send us the bill of materials and a sample. We'll build a few and tell you what it actually takes.