How Is a PCB Quote Calculated?
Why do quotes for the same design vary so much between suppliers? Because PCB price is driven by several spec variables together. Understanding them helps you read a quote—and control cost right at the design stage. Here's the breakdown.
The 8 Factors That Drive PCB Price
| Factor | Effect on price |
|---|---|
| 1. Layer count | The biggest factor. More layers mean more lamination and process steps, raising price significantly. |
| 2. Board area & quantity | Priced by material utilization. Larger area and higher quantity improve panel utilization, lowering per-board cost. |
| 3. Material | FR-4 is most economical; high-frequency (e.g. Rogers) and high-Tg materials cost more. |
| 4. Surface finish | OSP / lead-free HASL cheapest; ENIG pricier; ENEPIG highest. |
| 5. Copper weight | 1oz is standard; 2oz+ heavy copper (high-current) adds cost. |
| 6. Trace width / hole size | Finer traces and smaller holes (e.g. laser blind vias) raise process difficulty and price. |
| 7. Special processes | Impedance control, blind/buried vias, rigid-flex, countersinks all add cost. |
| 8. Lead time | Standard lead time is most economical; rush orders add a fee for capacity reallocation. |
What Do You Need to Provide for a Quote?
The more complete the info, the more accurate and faster the quote. Standard PCB quote checklist:
- ✓Gerber files (including NC Drill)
- ✓Layer count, board thickness, copper weight
- ✓Surface finish (HASL / ENIG / OSP / ENEPIG)
- ✓Soldermask and silkscreen colors
- ✓Quantity and lead-time requirement
- ✓Material requirement (FR-4 / high-frequency / high-Tg, etc.)
- ✓Impedance spec (if required, attach impedance table)
- ✓For flex: attach bend-area drawing; note special processes
How to Effectively Reduce PCB Cost
- 1Keep layer count reasonable: if 4 layers suffice, don’t use 6—layer count is the biggest cost lever.
- 2Pick the right finish: for non-fine-pitch, non-high-reliability needs, OSP or lead-free HASL is enough; no need to default to ENIG.
- 3Use panelization: combining small boards into a panel improves material utilization and lowers per-board cost.
- 4Avoid over-specifying: set trace width, hole size and copper weight to actual needs, not to the process limit.
- 5Plan quantity and lead time: order in reasonable batches on standard lead time to avoid unnecessary rush fees.
FAQ
Q1. Can you quote with only a schematic, no Gerber yet?＋
We can give a rough estimate from preliminary specs (layers, size, quantity), but a formal quote needs Gerber and drill files to accurately price material and process.
Q2. How soon do you reply with a PCB quote?＋
With complete data, Shinly International typically replies within one working day.
Q3. Why is unit price lower at higher quantity?＋
PCB has fixed tooling and panelization costs; higher quantity spreads them thinner, lowering per-board price.
Q4. Does the quote include SMT assembly?＋
PCB fabrication and SMT are separate items. For turnkey PCBA (with placement and assembly), please include the BOM so we can quote the whole project.
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