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Panel Sizes

Front Panels

Units used

These are based on standard rack measurement units, they are:

Height	Rack Units	U	44.45mm	1.75“
Width	Horizontal Pitch	HP	5.08mm	0.2”

For Eurorack the height is 3U, 128.5mm.

Note: The height of the PCB behind this is typically 110mm giving 9.25mm clearance top and bottom to allow for rack mounts. The width is generally 0.1mm smaller (or more) to allow for side clearance.

Mounting

Mounting holes have a diameter of 3.2mm and are placed as follows: Note: At 9HP and below only one drill hole is used.

Quick Reference

HP	nominal (mm)	actual (mm)
1	5.08	5
2	10.16	9.8
4	20.32	20
6	30.48	30
8	40.64	40.3
10	50.8	50.5
12	60.96	60.6
14	71.12	70.8
16	81.28	80.9
18	91.44	91.3
20	101.6	101.3
21	106.68	106.3
22	111.76	111.4
28	142.24	141.9
42	213.36	213