Raspberry Pi 4 Model B — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/raspberry-pi-4-b/  (CC BY 4.0)
Basis: published mechanical drawing
Catalog version: 2026-10-20

Overall (mm): length 85, width 56
Mounting holes: 4 × Ø2.7 mm, pattern 58 x 49, 3.5 from each edge, screw M2.5
- Same 58 × 49 mm hole pattern as Pi 2/3/5; port layout differs from Pi 5 (USB-C power and two micro-HDMI on the long edge, USB/Ethernet on the short edge).
- Official STEP and PDF drawing available.

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Raspberry Pi Ltd (official): Raspberry Pi 4 mechanical drawing (PDF) — PDF — CC BY-SA 4.0 (Raspberry Pi documentation) [verify license at link] — https://datasheets.raspberrypi.com/rpi4/raspberry-pi-4-mechanical-drawing.pdf
- Raspberry Pi Ltd (official): Raspberry Pi documentation: drawings and STEP — PDF, STEP — CC BY-SA 4.0 (Raspberry Pi documentation) [verify license at link] — https://www.raspberrypi.com/documentation/computers/raspberry-pi.html

Xem Studio scan: not planned; the official CAD above covers it.
API: https://xemstudio.com/api/geometry?object=raspberry-pi-4-b