Sewing sells by the item and the alteration, and both price the same way underneath: materials, minutes at a rate worth having, overhead on top. Batch mode splits the setup time across a market run.
The Job
Charge at Least
51 min each (setup shared across 10) at $20.00/hr
- Labor per item$17.00
- Materials$8.00
- Overhead$3.75
- Batch of 10$287.50
- Your effective wage$33.82/hr
The Formula
per item = (materials + (minutes + setup ÷ batch) ÷ 60 × rate) × (1 + overhead %)Batch setup, the cutting marathon, the serger re-thread: divides across the run, which is why market sewists cut twenty zipper pouches at once. Alterations run the same formula at batch 1 and setup 0, which collapses to minutes × rate + notions.
Worked Example
Zipper pouches for a market: $8 materials, 45 min each, $20/hr, 60 min of batch cutting across 10, 15% overhead:
- Time per pouch: 45 + 6 = 51 min → $17 of labor.
- (8 + 17) × 1.15 = $28.75: price at $29–32.
- The $12 market pouch next booth over paid its maker about $4.70 an hour. Yours doesn’t have to.
Alteration Pricing, the Formula Applied
Common jobs at $20/hr plus notions: time your own first; machines and habits move these.
| Alteration | Typical minutes | Formula price |
|---|---|---|
| Hem jeans | 20–30 | $8–12 |
| Hem dress pants | 25–35 | $9–13 |
| Replace a zipper | 45–75 | $17–29 + zipper |
| Take in a waist | 40–60 | $15–23 |
| Shorten sleeves (jacket) | 60–90 | $23–35 |
Counting the Minutes Honestly
- Time three of the same item and average, the first run is slow; the third is your true time.
- Setup is real work: washing and pressing yardage, cutting day, winding bobbins. It goes in the batch line, not nowhere.
- Rate: alterations around you price labor at $20–40/hr equivalent: check a local tailor’s list and stop undercutting yourself by default.
Assumptions and Defaults
- Overhead covers thread, needles, machine service, and the booth, the costs that vanish from hobby math.
- Wholesale doubling applies when shops resell; most sewn-goods makers sell direct and keep the margin.
- Rush jobs multiply the labor line, not the materials: 1.5× for this-week is customary.