2 Layer 2oz 0.8mm Service

A special stackup intended for a variety of high-power and low weight circuit designs. This service features a 0.032” (0.8mm) thick PCB, and includes 2oz (2.8mil, 70um) copper. That’s half the thickness of our standard boards, and with twice the copper!


$5 per square inch, which includes three copies of your design. For example, a 2 square inch board would cost $10 and you’d get three copies of your board. You can order as many copies as you want, as long as they’re in multiples of three.

Turn Times

Orders are sent to fabrication every week, and have a turn time from the fab of one week.

You can get a quote, approve a design, and pay for an order at OSH Park.

Fabrication Specs

2 Layer PCB Specs

Quick Specs

  • 6 mil (0.1524mm) minimum trace width
  • 6 mil (0.1524mm) minimum trace spacing
  • 10 mil (0.254mm) minimum drill
  • 5 mil (0.127mm) annular ring
  • PCB thickness of 0.8mm (.032”)
  • 2oz copper on both sides (70um, 2.8mil)

Detailed Specs

  • ENIG (gold) finish for superior soldering and environmental resistance.
  • Solder resist and silkscreen on both sides.
  • Minimum 15 mil (0.381mm) keepout distance from traces to the board edge.
  • PCB substrate is FR4 (170 Tg).
  • PCB substrate is compatible with a lead-free process.
  • The boards themselves are also lead free and RoHS compliant.
  • PCB Substrate dielectric constant of 4.6 at 1MHz.
  • Minimum 4 mil soldermask web.
  • Maximum soldermask expansion, retraction, or shift is 3mil.
  • Minimum 100 mil width on internal cutouts. See our Slots page for further information.
  • Manufactured in the United States.
  • Castellations are allowed, but not officially supported.
  • Non-plated slots wider than 100 mil (2.54mm) are not officially supported.
  • Plated slots and smaller slots are possible, but not officially supported. See our Slots page for more.

2 Layer Stackup

Thickness Layer Tolerance
1mil (0.0254mm) solder resist +/-0.2mil (0.00508mm)
2.8 mil (70um) 2 oz copper  
30 mil (0.762) FR4 core +/-3mil (0.0762mm)
2.8 mil (70um) 2 oz copper  
1mil (0.0254mm) solder resist +/-0.2mil (0.00508mm)

2 layer Drill Specs

  • Minimum 10 mil (0.254mm) drills with 5 mil (0.127mm) annular rings.
  • Maximum plated hole size is 265 mils (6.731mm). Unplated holes do not have a maximum size.