Chapter 01:
What in-house production really requires:
“In-house” sounds like a decision about machines. It isn’t.
Machines are the cheapest part of the sentence.
When you bring production in-house, you’re not buying equipment; you’re standing up an operation.
That operation runs whether you sold ten pieces last month or ten thousand.
Understanding what it actually contains is the literacy you need before the decision makes any sense.
It’s a standing operation, not a purchase:
A working in-house line needs, at minimum, cutting, stitching, and finishing stations; someone who can turn a design into a production-ready spec; a pattern and sampling capability; a quality checkpoint; and a person managing all of it day to day.
Every one of those is a recurring commitment, not a one-time buy.
Before you can produce anything in-house, you need to be able to sample it in-house first.
Sampling is where a design becomes buildable.
If you can’t reliably produce a good sample, you can’t reliably produce a good run, and sampling capability is its own investment in skill and time.
That capability rides on your paperwork.
A production line is only as precise as the tech pack feeding it. Owning the machines doesn’t help if the spec is vague; the operators will build exactly what’s on the sheet, and no more.
The fixed-cost problem:
Here’s the part founders underestimate.
Outsourcing is a variable cost: you pay per unit, so cost scales with sales.
In-house is a fixed cost: rent, wages, and maintenance are due every month regardless of orders.
That flip is the whole risk. A slow season doesn’t reduce your in-house overhead.
It just eats your runway. You’ve converted a cost that used to shrink when sales shrank into one that doesn’t.
Do the fill-in math:
Before you seriously consider in-house, price your real fixed monthly overhead, then divide by your realistic monthly unit volume to get a true per-unit cost you can compare against an outsourced quote.
Cost comparison: in-house vs. outsourced garment production
Both models pay for the same things. Machines, people, space, and checking the work.
The difference is how you pay for them.
In-house, most of those costs become fixed bills you carry every month.
Outsourced, the partner rolls them into one per-unit price, often called CMT (cut, make, and trim).
Here’s every cost line, side by side.
| Cost line |
In-house |
Outsourced |
| Machinery and equipment |
You buy, install, and maintain it |
Built into the partner’s unit price |
| Workshop rent and utilities |
Fixed, due every month |
The partner’s overhead, not yours |
| Operator and supervisor wages |
Fixed, paid in slow months too |
Built into the per-unit (CMT) price |
| Patterns and sampling |
Your own team’s time and skill |
Charged per style as a sampling fee |
| Quality control |
Your own QC staff |
Partner inspection against your AQL, plus optional third-party checks |
| Fabric and trims |
You buy and store them |
Supplied by you or sourced by the partner |
| Idle capacity |
You absorb it |
The partner absorbs it |
| Minimum order quantity |
No partner floor, but the line needs volume to pay off |
A floor per style or colorway |
| Freight and duties |
Mostly inbound materials |
Shipping from the factory, plus duties if it’s overseas |
| Management time |
High: you run the floor |
Lower: you specify, communicate, and inspect |
Read the table as a pattern, not line by line.
In-house turns most lines into fixed costs. Outsourcing turns them into a per-unit price.
So the cheaper model isn’t fixed. It’s whichever one wins at your real volume.
The two formulas that decide it
Use these with your own figures. They work for any product.
In-house cost per unit = (monthly fixed overhead ÷ units made that month) + materials per unit
Break-even volume = monthly fixed overhead ÷ (outsourced price per unit − in-house materials per unit)
Below the break-even volume, outsourcing is cheaper.
Above it, in-house starts to win on cost. But only if you stay above it every month, not just in your best season.
Notice the first formula. When volume drops, the overhead is split across fewer units, so every piece gets more expensive. That’s the fixed-cost problem in one line.
A worked example: the hoodie overhead ceiling
Let’s run the second formula backwards, using our own published hoodie prices.
A custom heavyweight hoodie from our floor lands near $52 a unit at 50 pieces, around $46 at 500, and close to $40 at 1,500. (Full breakdown in small-batch vs. bulk.)
Fabric is the highest single cost in a hoodie, typically 40-55% of the unit cost (see best GSM for a hoodie). You’d buy that fabric whether you outsource or not.
Everything left over is what your in-house operation would have to beat.
Multiply it by your monthly volume, and you get the most overhead you could carry each month just to match the outsourced price.
| Made every month |
Outsourced price |
Fabric share (40–55%) |
Left per unit |
Monthly overhead ceiling |
| 50 hoodies |
$52 |
$20.80-$28.60 |
$23.40-$31.20 |
$1,170-$1,560 |
| 500 hoodies |
$46 |
$18.40-$25.30 |
$20.70-$27.60 |
$10,350-$13,800 |
| 1,500 hoodies |
$40 |
$16.00-$22.00 |
$18.00-$24.00 |
$27,000-$36,000 |
Read the bottom-right column carefully. That one monthly budget has to pay for rent, every wage, machine upkeep, sampling, QC, and management.
And it’s a ceiling, not a target. It only counts fabric, so trims, thread, labels, and packaging shrink it further.
At 50 hoodies a month, price those lines in your own city, and the answer is usually obvious.
At 1,500 a month, every month, in-house becomes a real question. That’s the break-even volume at work.
The cash-conversion trap:
In-house also changes when you spend. You buy fabric, pay labor, and finish goods well before a customer pays you.
That gap, cash out before cash in, ties up working capital that a growing brand usually needs for marketing, samples, and the next drop.
This matters most if you’re deciding between production models and small-batch versus bulk runs.
Small batches keep that cash gap tight. In-house at low volume forces you to carry the whole operation’s cost against small runs, the worst of both.
The literacy takeaway: in-house means owning a fixed-cost operation and its cash-conversion cycle, not just buying machines. Keep that framing as you read the rest.