Plywood Base For A Wall With Wooden Studs; Figure 30: Switch On The Wall With A Plywood Base - Allied Telesis AlliedWare Plus x530DP Series Installation Manual

Plywood Base for a Wall with Wooden Studs

If you are installing the switch on a wall that has wooden studs, use
plywood base for the device. (A plywood base is not required for a
concrete wall.) Refer to Figure 6.
Wall
Plywood Base
Figure 6. Switch on the Wall with a Plywood Base
Mount the plywood base to two studs in the wall. The recommended
minimum dimensions of the plywood base for the switch are:
Width: 55.9 centimeters (22 inches)

Height: 61.0 centimeters (24 inches)

Thickness: 2.5 centimeters (1 inch)

The dimensions assume the wall studs are 41 centimeters (16 inches)
apart. You might need to adjust the width of the base if the distance
between the studs in your wall is different than the industry standard.
x530DP Series Installation Guide for Standalone Switches
Wall Studs
AT -x
53 0-
28 GT
Xm
4592
83