Knitted Bag Inventory Planning: Six Questions That Decide How Much Stock a Knit Programme Carries

Question One: How Much Stock Does a Knit Programme Need?

A knit programme needs demand-during-lead-time plus a buffer, which on practical numbers means about 6 to 10 weeks of cover through a seasonal peak rather than the two or three weeks a domestic replenishment model would suggest.

The difference between a knit programme and a domestic one is almost entirely lead time, and it is a large difference. Thirty days of bulk production is the floor, and by the time inspection, customs formalities and delivery are added the realistic door-to-door window is about 7 weeks. A stock planner who carries three weeks of cover is therefore relying on a replenishment cycle three weeks shorter than the calendar allows, and the shortage will show up not as a stockout at the warehouse but as an empty fixture.

Cover targets should also be read against what the season actually demands rather than against an annual average. A 10-week cover target during a slow tail is waste; the same target through the peak week is the minimum that keeps the shelf whole. This is why cover should be evaluated weekly against the demand curve rather than set once for the season.

Question Two: Why Does the Reorder Never Arrive in Time?

Because the reorder decision is usually made on the date the stock runs low rather than on the date the stock was always going to run low, and in knit those two dates differ by about 7 weeks.

The error is structural rather than careless. A planner watching stock counts reacts when the number goes red, which is by definition the moment the shortage becomes visible rather than the moment it became inevitable. Since the minimum usable trigger is around 7 weeks ahead of the need, the decision has to be fired from a reorder point rather than from a visual signal. That means computing the point at which remaining stock equals expected demand across the coming 7 weeks plus buffer, and acting when stock crosses it.

There is a second reason reorders slip that is specific to this category. Because MOQ is 100 pcs per style and per colourway, a small shortfall cannot be topped up; either the reorder clears 100 in that colourway or it does not happen. Planners who wait for a sizeable shortfall to accumulate before reordering are usually reacting subconsciously to that floor, and losing weeks doing it.

Question Three: What Should the Reorder Point Actually Be?

Reorder point equals expected demand during the 7-week replenishment window plus a safety buffer, and the buffer should be sized from the gap between peak and average weekly rate rather than from intuition.

A workable formulation for this category is: reorder point = average weekly demand multiplied by lead time weeks, plus (peak weekly demand minus average weekly demand) multiplied by lead time weeks. The first term covers ordinary run rate; the second covers the swing. It is deliberately simple, because a formula that requires data the business does not have will not be used, and the gain from sophistication here is smaller than the gain from being applied consistently every week.

The worked example below shows how much that changes the answer. A colourway selling 30 pieces a week peaks at 85. Average demand across 7 weeks is 210 pieces; the swing term is another 385; the reorder point lands near 595 pieces, which is six times the intuitive figure most planners arrive at and comfortably above the 100-piece minimum. Nothing about that is pessimistic arithmetic; it is what a 7-week pipeline costs.

Question Four: How Does Minimum Order Distort the Stock Mix?

Minimum order distorts the mix by making every style-and-colourway pair expensive to exist, so a programme tends to end up carrying too many colours at too shallow a depth rather than the reverse.

This is the single most diagnostic pattern in knit inventory. Because MOQ is 100 pcs per pair, adding a fourth colourway costs 100 pieces of commitment whether or not that colourway will sell 100 pieces. Programmes spread accordingly, and the result is a shelf with wide choice and thin depth, where the popular colour is out of stock by week five while three others sit untouched. The remedy is counterintuitive and almost always correct: fewer colourways, deeper, with the popular one carrying twice what feels proportionate.

A simple classification helps decide where depth belongs. Sort style-and-colourway pairs by contribution to volume and expect a steep concentration: a small number of pairs will account for most of the movement, and those deserve depth while the rest deserve existence-level stock at the minimum. Planning depth by intuition across all pairs equally produces the shallow-wrong outcome described above, and it is the most common way a knit programme ends up simultaneously overstocked and sold out.

Question Five: Where Should the Buffer Sit?

The buffer can sit in finished goods or in yarn, and for colourways that repeat across seasons, yarn is usually the better place because it lets depth be added without a new set-up or a new minimum per order.

Holding yarn converts a per-order constraint into a seasonal one. Finished goods sitting in a warehouse are locked into a style and colourway and cannot be re-directed; yarn can become any quantity of the same colourway when demand shows itself, and it is far more tolerant of storage. The trade-offs are real though: the colour has to be decided before the season rather than during it, cash is committed earlier, and the arrangement only pays for shades that will genuinely be used again.

Finished goods still have a place, and knowing where matters. New or untested colourways belong finished, because the whole point of them is that nobody knows how they will do, and locking yarn against a guess defeats the purpose. A sensible programme therefore holds finished stock at the minimum on experimental pairs and yarn on proven ones, which is roughly how most experienced knit planners end up operating without necessarily articulating why.

Question Six: What Is the Exit Rule for Slow Stock?

Agree the exit rule before the season rather than during it: a pair whose sell-through is below about 30% by the tenth week should be stopped from reordering and given a defined end date.

The value of a rule here is entirely about who makes the decision and when. Discovered late, slow stock becomes an argument between merchandising, finance and whoever owns the plan, conducted with partial data and against an approaching freight decision. Decided in advance, it is arithmetic anybody can run. The 30% threshold is not universal and should be set to the programme's own economics, but having some number early beats discovering the right number late.

There is a better outcome available for slow knit stock than simply writing it off, and it is worth planning for. A carried-over silhouette in a new seasonal shade reads as new on the floor, so slow pieces often respond better to a change of context than to a markdown immediately. Draining pair count at the next planning round is the structural fix: every colourway removed from the grid is 100 pieces of exposure that will never be created.

Putting the Six Answers Together

Six answers reduce to three operating rules: plan against a 7-week pipeline rather than against today's stock, put depth where concentration actually sits, and decide exit conditions before they are needed.

None of those three require better forecasting, which is the useful part. Most inventory advice directs attention at the accuracy of the demand estimate, and in knit that is usually the second-order problem. A programme can be entirely wrong about next season's total and still be healthy if it reacts to real sell-through quickly enough, provided the calendar allows the reaction. Since the calendar does not allow it beyond roughly one reorder, the other two rules about depth and exit conditions carry more weight than the forecast does.

Capacity rarely enters these decisions, and it is worth saying why. Seven production lines running about 200,000 pcs per month will absorb a typical brand programme, so the stock question is not whether goods can be produced but whether the commitment shape matches how demand actually arrives.

Replenishment window

About 7 weeks door-to-door, including 30 days of bulk

Cover target through peak

About 6 to 10 weeks, checked weekly

Minimum per pair

100 pcs per style and per colourway on every order

Reorder point method

Average weekly demand x lead time, plus swing x lead time

Slow stock exit rule

Sell-through below about 30% by week 10 stops reordering

Carry-over target

About 40% of styles into the following season

How Knit Stock Ages Differently From Woven Stock

Knitted stock ages better than sewn stock in one specific respect and worse in another: it holds its shape in storage but it holds its programming cost against a specific style, so unsold pieces carry a longer financial shadow.

The physical side is mostly reassuring. A folded knitted body does not crease the way a coated woven does, does not require hanging, and tolerates compression well, so a carton opened a season later usually presents acceptably. What does not travel well is the commercial logic. Every style-and-colourway pair represents a set-up already paid for and a programming file already written, and neither can be transferred to a different silhouette. Unsold knit stock therefore cannot be quietly re-worked into the following range the way cut panels sometimes can.

That asymmetry argues for treating pair count as the lever rather than quantity per pair. Removing one colourway from next season's grid eliminates 100 pieces of exposure that will never be created, which is a better outcome than running it again at a reduced count. Where stock already exists, pairing it with a new shade in a later call-off is usually more productive than carrying it unchanged, because the reason it slowed was often the colour rather than the shape.

What to Review Each Week, and What to Leave Alone

Review three things weekly and leave the rest until season end: cover against the demand curve, whether any pair has crossed its reorder point, and whether any pair has crossed its exit condition.

That is deliberately a short list. Weekly reviews that examine everything tend to change nothing, because the volume of observation makes every item look like a judgement call rather than a decision. Three mechanical checks with known thresholds produce action; twenty charts produce discussion. Where the review does surface a genuine problem it is almost always one of these three, because they are the three places where the plan meets a fixed constraint.

Frequently Asked Questions

People Also Ask

Plan to the Pipeline, Not to the Shelf

Knit inventory behaves differently from domestic replenishment because the pipeline is long and the per-order minimum is firm. Once those two facts are written into the plan, most of the apparent forecasting difficulty dissolves: the remaining work is deciding where depth belongs and agreeing when slow stock stops.

For the commercial side of these numbers, see knitted bag margin structure and bag programme cost planning. For the market frame, see knitted bag market trends.