PCB Design Rules - fusion/pcbway-2L.dru

by adom

Canonical PCB fab design rules (DRC) for every popular vendor: one JSON record per vendor, process and layer count, with generated Fusion/EAGLE .dru and .edru, KiCad .kicad_dru plus board-setup JSON, Altium .RUL exports, and a human comparison table. Every number cites the vendor's own capabilities page and the date it was read.

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John Lauer Initial publish: canonical per-vendor PCB fab design rules. 13 vendors, 56 records (vendor, process, layer count) read… bafc3ce 1mo ago

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description[PCBWay 2-layer design rules (standard process) |  | Min trace width: 0.1016 mm (4.0 mil) - prototype process, any copper weight; per copper weight outer layer limits are 0.5oz: 4/5mil, 1oz: 5/6mil, 2oz: 7/8mil, 3oz: 10/12mil (before compensation) | Min spacing: 0.1016 mm (4.0 mil) - prototype process, different nets; per copper weight outer layer limits are 0.5oz: 4/5mil, 1oz: 5/6mil, 2oz: 7/8mil, 3oz: 10/12mil (before compensation) | Min drill: 0.2 mm (7.87 mil) | Min via: 0.2 mm hole / 0.454 mm pad | Annular ring: via 0.127 mm | Copper to board edge: 0.25 mm | Hole to hole: 0.2794 mm | Board thickness options: 0.4 mm, 0.6 mm, 0.8 mm, 1.0 mm, 1.2 mm, 1.6 mm, 2.0 mm, 2.4 mm | Copper weight options: 0.5 oz, 1 oz, 2 oz, 3 oz, 4 oz | Surface finishes: HASL with lead, HASL lead free, Immersion gold (ENIG), OSP, Immersion Tin | Max board size: 508 x 610 mm |  | Min board thickness 0.3mm, max board thickness 3.2mm. Prototype quote page lists max PCB size 500x1100mm and drill range 0.2 to 6.3mm. Grid trace 1oz: 9/11mil. Hole diameter tolerance PTH: plus or minus 0.075mm. Panel size max 20x24 inch. |  | Sources: | - https://www.pcbway.com/capabilities.html (read 2026-09-03) | - https://m.pcbway.com/capabilities.html (read 2026-09-03)]

layerSetup = (1*16)
mtCopper = 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm
mtIsolate = 1.6mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm
mdWireWire = 4.0mil
mdWirePad = 4.0mil
mdWireVia = 4.0mil
mdPadPad = 5.91mil
mdPadVia = 4.0mil
mdViaVia = 4.0mil
mdSmdPad = 4.0mil
mdSmdVia = 4.0mil
mdSmdSmd = 4.0mil
mdCopperDimension = 9.84mil
mdDrill = 11.0mil
msWidth = 4.0mil
msDrill = 7.87mil
mdViaViaSameLayer = 6mil
mdSmdStop = 0mil
msMicroVia = 12mil
msBlindViaRatio = 0.5
rvPadTop = 0
rvPadInner = 0
rvPadBottom = 0
rvViaOuter = 0
rvViaInner = 0
rvMicroViaOuter = 0
rvMicroViaInner = 0
rlMinPadTop = 7.09mil
rlMaxPadTop = 80mil
rlMinPadInner = 7.09mil
rlMaxPadInner = 20mil
rlMinPadBottom = 7.09mil
rlMaxPadBottom = 80mil
rlMinViaOuter = 5.0mil
rlMaxViaOuter = 20mil
rlMinViaInner = 5.0mil
rlMaxViaInner = 20mil
rlMinMicroViaOuter = 5.0mil
rlMaxMicroViaOuter = 20mil
rlMinMicroViaInner = 5.0mil
rlMaxMicroViaInner = 20mil
psTop = -1
psBottom = -1
psFirst = -1
psElongationLong = 100
psElongationOffset = 100
mvStopFrame = 0
mvCreamFrame = 0
mlMinStopFrame = 1.5mil
mlMaxStopFrame = 4mil
mlMinCreamFrame = 0mil
mlMaxCreamFrame = 0mil
mlViaStopLimit = 20mil
srRoundness = 0
srMinRoundness = 0mil
srMaxRoundness = 0mil
slThermalIsolate = 10mil
slThermalsForVias = 0
dpMaxLengthDifference = 400mil
dpGapFactor = 2.5
checkAngle = 0
checkRestrict = 1
checkStop = 0
checkValues = 0
checkNames = 1
checkWireStubs = 1
checkPolygonWidth = 0
useDiameter = 13
maxErrors = 50