• Posted on: 26 August 2026
  • By: webadmin

BPS organises its prototyping PCBs around three standard sizes. Having a consistent size system means that PCBs, enclosures, and kits are designed to work together. You can swap between different PCB patterns and know the board will still fit your enclosure.

  • Size1: 80 x 50 mm / 3.15 x 1.97 in
  • Size2: 100 x 80 mm / 3.94 x 3.15 in
  • Size3 (3U): 160 x 100 mm / 6.30 x 3.94 in

Size3 is a standard single-height (3U) Eurocard/VME form factor, which means it is compatible with off-the-shelf rack enclosures. Most BPS PCB patterns are available in all three sizes: StripBoard, PadBoard, ProtoBoard, BusBoard, PowerBoard, SMTpads, and SMTboard. The Solderable PC BreadBoard series uses its own dimensions to match standard solderless breadboard footprints.

For projects that don't fit within these three sizes, BPS offers a number of other PCB dimensions: from our small snappable BreadBoards to our oversized ST6U StripBoard.

BusBoard Standard Sizes comparison
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