Quick Reference: Rush Pricing Multipliers
PCB rush pricing follows an exponential curve. Here's what you actually pay:
| Lead Time | 2-Layer | 4-Layer | 6-Layer | 8-Layer |
|---|---|---|---|---|
| Same-day (24hr) | 4-5x | 5-8x | N/A | N/A |
| 2-day | 3-3.5x | 3.5-4x | N/A | N/A |
| 3-day | 2-2.5x | 2.5-3x | 3-4x | N/A |
| 5-day | 1.5-1.8x | 1.8-2.2x | 2-2.5x | 2.5-3x |
| 7-day | 1.2-1.3x | 1.3-1.5x | 1.5-1.8x | 1.8-2.2x |
| 10-day | 1.0-1.1x | 1.1-1.2x | 1.2-1.3x | 1.3-1.5x |
| 15-18 day | 1.0x | 1.0x | 1.0x | 1.0x |
N/A = physically impossible — multilayer boards require multiple lamination cycles that cannot be compressed below certain thresholds.
The 5-day sweet spot: Moving from 3-day to 5-day saves 25-30% while adding only 48 hours. This is the inflection point for most prototypes.
Where the Money Actually Goes
Understanding the cost structure helps you make informed tradeoffs.
Material cost (20-35% of base price): Stays constant regardless of lead time. FR-4, copper foil, chemicals cost the same whether your board ships in 1 day or 15.
Labor and machine time (30-40%): Increases because rush orders prevent batching. In normal production, your prototype shares a panel with other similar boards, splitting setup costs across 8-12 jobs. A rush order often runs alone — all costs fall on your single job. This alone accounts for 1.3-1.5x on any rush below 7 days.
Queue priority (the big one, 30-50% of rush premium): Every hour your rush job occupies a machine, another customer's order waits. The fabricator must run overtime (1.5-2x labor rates), delay other orders, or maintain dedicated rush capacity. This queue displacement follows an exponential curve — it's the reason 1-day rush costs 4x while 7-day rush costs only 1.3x.
The Physics Floor: Minimum Lead Times
No amount of money can accelerate chemical reactions or thermal curing.
Single lamination cycle (for a 4-layer board): 2-4 hours press time at 180-200C, plus 1-2 hours cooling, plus 4 hours stress relief. A 4-layer board can theoretically ship in 24-36 hours.
Two lamination cycles (8-layer): Each needs its own press cycle and cooling. Minimum: 3-4 days.
HDI boards (2+N+2): Four lamination cycles minimum. Physics floor: 6-8 days. Most fabricators quote 8-10 days as fastest.
If a fabricator quotes 3-day 8-layer boards, they either have pre-fabricated inner layers in stock (repeat orders) or they're counting from a stage where partial fabrication is complete. Ask what "day one" means.
Strategies to Minimize Rush Cost
1. Design for standard process capabilities
- Minimum trace/space 5/5mil instead of 4/4mil (eliminates fine-line imaging)
- Standard drill sizes (0.2mm minimum vs 0.15mm): higher drill speeds, fewer bit changes
- OSP surface finish (10 min cure) vs ENIG (30-45 min chemistry sequence)
- Each simplification buys back minutes that compound in a rush
2. Submit complete, error-free documentation
In rush production, there's no buffer for engineering questions. A missing drill file or ambiguous callout that takes 2 hours to resolve costs almost nothing on a 15-day order but consumes 8% of a 24-hour rush window.
3. Choose your rush threshold strategically
The steepest cost region: 1-3 days (each extra day saves 15-25%). The flat zone: above 7 days (diminishing returns). The sweet spot: 5 days.
Real-World Pricing Examples
10 pieces, 100x100mm, 1.6mm FR-4, ENIG finish, +/-10% impedance:
| Configuration | Standard (15-day) | 7-day | 5-day | 3-day |
|---|---|---|---|---|
| 2L, 5/5mil | $45-65 | $60-85 | $75-110 | $110-165 |
| 4L, 4/4mil | $95-140 | $130-190 | $175-260 | $250-380 |
| 6L, 4/4mil | $160-230 | $230-340 | $320-460 | N/A |
| 8L, 3.5/3.5mil | $280-400 | $420-600 | $560-800 | N/A |
For production (100+ pieces), the percentage premium decreases but absolute cost is significant. A 100-piece 4-layer run: $800 standard vs $1,200 at 10-day expedite vs $1,600 at 7-day rush.
When Rush Is Worth It
Worth it:
- Time-to-market revenue exceeds the premium ($10K revenue gain vs $200 rush fee)
- Fixed deadline (trade show, customer sample, test slot)
- Engineering team idle waiting for boards (3 engineers x $150/hr x 5 days = $4,500 idle cost)
Not worth it:
- Still making schematic changes while waiting
- Next design spin not fully defined
- Iterative exploration (use standard lead time, maintain steady pipeline)
The Production Rush Difference
Production rush pricing is typically lower as a percentage but higher in absolute cost. A 1000-piece order at standard (15-18 days) might cost $4.50/board; 10-day expedite costs $5.50/board (22% premium). The premium is lower because production panels are sized for efficiency and the fabricator can batch multiple panels within the rush window.
The business decision for production rush is simpler: does shipping product one week earlier generate enough revenue to justify the extra cost per unit? For most products in active sales, the answer is clearly yes once initial launch demand is confirmed.
Need pricing across all lead time options? Upload your Gerber files to AtlasPCB and get instant quotes for every delivery tier — from 1-day rush to 18-day standard — so you can pick the optimal cost-time balance for your project.
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