You send the same Gerber files to five PCB manufacturers. The quotes come back: $12, $19, $25, $31, and $48 per board. Same board, same quantity, same specs on paper.
What's going on?
Having reviewed thousands of competitor quotes over the years (engineers send them to us regularly), I can tell you: these numbers aren't directly comparable. They almost never include the same things.
The Hidden Structure of PCB Pricing
Every PCB quote covers five categories of cost — whether the manufacturer shows them separately or buries them in the unit price:
Materials (25-35% of cost for standard FR-4, up to 50%+ for Rogers/specialty)
Processing — every step from cutting through routing. A 2-layer board goes through ~12 major steps. A 10-layer board with blind vias? Twenty-five or more.
Quality assurance — AOI, electrical testing, impedance verification, final inspection. This is 10-15% of cost in a well-run factory. Some manufacturers include it. Some list it separately. Some... don't mention it at all.
Engineering overhead — CAM processing, panelization, drill programs, DFM review. Takes 1-4 hours per new design.
Logistics — packaging, documentation, shipping, customs.
The key insight: a manufacturer quoting $12.40/board isn't necessarily cheaper than one quoting $18.90 if the first excludes testing, charges tooling separately, and adds packaging fees that the second already bundled in.
The Specification Multipliers Nobody Talks About
Certain design choices have outsized effects on fabrication cost. From our production data:
- Layer count: 2L → 4L = 1.6-1.8x. 4L → 6L = another 1.4-1.6x. 8L = 2.0-2.5x the 4L cost. 10L+ = 3x or more.
- Trace/space: Standard (4-6 mil) = baseline. 3 mil = +10-20%. Below 3 mil = +30-50%. Below 2 mil (mSAP territory) = +60-100%.
- Surface finish: HASL = baseline. ENIG = +30-50%. ENEPIG = +50-70%.
- Impedance control: ±10% = +10-15%. ±5% = +40%+ (yield impact is non-linear).
- Heavy copper: +15-30% per additional ounce above 2oz.
When four manufacturers quote between $15-25 and one quotes $8, that low quote should raise questions, not celebrations.
How to Actually Compare: Total Landed Cost
The only meaningful comparison metric is total landed cost per delivered board:
(one-time costs) + (unit price × quantity) + (separate line items × quantity) + shipping + duties
────────────────────────────────────────────────────────────────────────────────────────────────
delivered quantity
Example: Quote A says $14.50/board + $300 tooling + $150 test setup + $85 shipping for 100 boards = $19.85 per delivered board. Quote B says $19.00/board all-inclusive with shipping = $19.00 per delivered board. B is actually cheaper despite the higher unit price.
Red Flags From the Factory Floor
After reviewing thousands of quotes, these patterns reliably predict problems:
Price dramatically below market — four quotes at $15-25, one at $8? That $8 means corners are being cut, or fees will appear later.
No mention of electrical testing — if a manufacturer doesn't test every board for opens, shorts, and isolation, that's disqualifying for professional applications.
"High-quality FR-4" without specifics — there's a measurable difference between a Shengyi S1000-2 and generic FR-4 from an unnamed supplier. If your material properties matter, the quote should name the material.
Unrealistic lead times — a 10-layer impedance-controlled board with blind vias and ENIG cannot ship in 5 days, period. A manufacturer promising this is either lying or cutting quality controls.
Zero DFM feedback — a competent fabricator seeing your design for the first time will almost always have questions. If they accept everything without comment, they're not reviewing your files.
When the Cheapest Quote Costs the Most
Consider: 500 boards at $15 each (low-cost) vs. $20 each (quality-focused). Savings = $2,500.
If the low-cost supplier delivers 3% defect rate caught during assembly — you scrap 15 boards ($225 in PCB cost, potentially $1,500+ in assembled board value with components already placed), delay production, and spend engineering time diagnosing whether failures are design or fabrication issues.
That $2,500 "savings" evaporates immediately. And 3% isn't even unusual for the cheapest tier.
The Questions That Reveal Everything
When evaluating manufacturers, these questions tell you more than any price sheet:
- "What material will you use, specifically?" → Naming brand, grade, and Tg = they've reviewed your spec.
- "What's your standard test coverage?" → Should be 100% net testing on every board.
- "Can you share process capability data for my critical features?" → Cpk data = they monitor statistically.
- "What happens if delivered boards don't meet spec?" → Strong manufacturers offer replacement at no charge with expedited delivery.
The Bottom Line
Comparing PCB quotes isn't about finding the lowest number. It's about normalizing every quote to total landed cost, verifying all essential services are included, and factoring in the quality track record and engineering support that determine whether the quoted price translates into a successful product.
The manufacturers worth working with are the ones whose quotes you can read clearly, whose pricing reflects genuine capability, and whose engineering teams engage with your design before the first panel hits the line.
I lead the engineering team at AtlasPCB, where we review PCB designs and provide transparent quoting for RF, HDI, and multilayer boards. We wrote a more detailed version of this guide with specific cost tables and a normalization checklist on our blog.
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