As a trusted UK PCB manufacturer with production in Shenzhen, China, Tate Circuits supports engineers, buyers, and OEMs across Europe with high-performance, precision-manufactured circuit boards. One of the most common questions we get from technical buyers is:
“Do I need 2oz copper for this PCB design?”
This guide explores what 2oz copper is, when to use it, how it affects your PCB layout and pricing, and why so many companies choose Tate Circuits as their go-to UK PCB supplier for heavy copper designs.
🔍 What Is 2oz Copper in PCB Manufacturing?
In PCB manufacturing, 2oz copper refers to the copper thickness on a printed circuit board. While standard PCBs typically use 1oz copper (35μm), 2oz copper provides a thicker 70μm layer for greater conductivity and thermal performance.
As a leading PCB manufacturer UK, we supply 2oz copper PCBs for:
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High current circuits
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Power converters
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Battery management systems
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Industrial motor control
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Rugged environments requiring high durability
Choosing the right copper weight is essential in PCB manufacturing UK — especially for high-power applications that need to manage heat and resistance more effectively.
🏭 Why Choose Tate Circuits for 2oz Copper Boards?
With engineering in the UK and production at our Shenzhen factory, Tate Circuits offers a seamless, cost-effective route to heavy copper PCBs. Customers trust us because we combine:
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The service of a UK circuit board supplier
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The scale and efficiency of a Shenzhen facility
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Fully inclusive delivery and customs management
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Competitive pricing for all copper weights and specs
Our team of engineers in the UK and China quote every job individually. You’ll never receive a generic price — just accurate, optimised solutions from a top-rated circuit board supplier UK.
🧮 What Affects the Cost of 2oz Copper PCBs?
The cost of upgrading from 1oz to 2oz copper depends on several factors:
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Copper coverage: Full copper pours increase cost more than trace-based designs.
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Trace width and spacing: Narrow features are harder to etch in thicker copper.
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Number of layers: Adding 2oz copper to inner layers increases processing time.
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Panel utilisation: Your board size affects how efficiently we can panelise it.
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Surface finish: ENIG or silver finishes on 2oz copper may require tighter controls.
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Drilling and special features: Slots, vias, countersinks, and gold fingers add cost.
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Volume and lead time: We offer express and standard builds for every spec.
At Tate Circuits, each board is quoted by an engineer using your actual Gerber files. That’s why customers across the UK and Europe trust us for transparent pricing and premium UK PCB manufacturing.
💡 Technical Design Tips for 2oz Copper PCBs
If you’re designing a board that needs 2oz copper, here’s what to consider:
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Minimum trace width/spacing: We recommend ≥8 mil (0.2mm); tighter designs may require enhanced processing.
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Etching accuracy: Thicker copper requires precise etch controls — our factory uses advanced chemistry to deliver sharp, consistent results.
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Via design: Annular rings and plating thickness must be adjusted for heavy copper.
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Pad and thermal reliefs: More copper = more heat. Reflow zones need careful tuning.
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Stack-up: Let us help define a custom stack-up with symmetrical copper distribution — essential for bow and twist control.
Our engineering support sets us apart from other PCB suppliers UK. We’ll proactively flag any risks, suggest cost-effective design tweaks, and ensure manufacturability from the first build.
🔁 When to Use 2oz Copper vs 1oz Copper
Not sure if you need 2oz copper? We’ll quote both versions so you can decide.
| Upgrade Option | Why Choose It | Cost Impact |
|---|---|---|
| 1oz → 2oz Copper | For higher current and thermal performance | +10–20% |
| HASL → ENIG Finish | For better solderability, flatness, and shelf life | +15–25% |
| 2 Layer → 4 Layer | For signal integrity and dense layouts | +60–80% |
| Standard → Express | For urgent builds with short delivery windows | Varies |
Every quote is tailored — we don’t use rigid pricing tables. That’s what makes us a leading PCB supplier UK for companies that care about quality and consistency.
See our full technical PCB capabilities here.
🌍 Why Global Buyers Trust Our Heavy Copper PCBs
Thousands of 2oz copper PCBs leave our Shenzhen facility each year, headed to customers in the UK, Germany, France, and the US. Our production is optimised for:
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Power boards
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Electric vehicle controllers
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LED drivers
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Industrial automation systems
From prototype to high-volume — we deliver.
We are a UK PCB manufacturer with real factory access — not a middleman or broker. That means:
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Competitive pricing
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Complete engineering support
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All customs and logistics handled
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A single point of contact
📩 Request Your Heavy Copper Quote Today
If you’re exploring 2oz copper PCBs for a new design — or comparing suppliers — we’re ready to help. Our engineers will review your files, quote 1oz and 2oz options side by side, and provide expert feedback.
📧 sales@tatecircuits.com
🌐 www.tatecircuits.com
We’re the UK circuit board supplier that delivers engineering-led service, Shenzhen speed, and the heavy copper capability you need.
Tate Circuits – UK PCB Manufacturer | Shenzhen Production | Heavy Copper Specialists
Supporting your growth with expert quoting, precision manufacturing, and on-time delivery.
What is a 2oz copper PCB?
In PCB manufacturing, 2oz copper refers to a 70μm copper thickness on the board, compared to the standard 1oz (35μm). It provides greater conductivity, improved heat dissipation, and higher current-carrying capacity.
When should I use 2oz copper PCBs?
2oz copper PCBs are recommended for high-current circuits, power converters, battery management systems, motor control, and rugged industrial environments where durability and thermal management are critical.
How much more expensive are 2oz copper PCBs?
Upgrading from 1oz to 2oz copper typically increases costs by 10–20%. The exact cost depends on copper coverage, trace width and spacing, number of layers, panel utilisation, finish type, and additional features like slots or vias.
What design tips should I follow for 2oz copper PCBs?
Designers should use minimum 8 mil trace/spacing, ensure precise etching, adjust via design and annular rings, carefully plan pad and thermal reliefs, and maintain symmetrical copper stack-up to avoid bow and twist.
Why choose Tate Circuits for 2oz copper PCBs?
Tate Circuits is a UK PCB manufacturer with Shenzhen production, providing engineering-led service, competitive pricing, and reliable delivery. With ISO-certified quality and a UK-based support team, we deliver thousands of heavy copper PCBs each year to customers across Europe and the US.