Do any companies make wood Internet routers?

No companies that manufacture routers appear to offer personalized casing to this degree. However, it is possible to have custom exterior casings produced for anything through a personalized crafts site, such as Etsy.com. Factors such as the dimensions, antennae, Ethernet and power ports would need to be taken into account.

A brief online search does not reveal any specific companies that make designer Internet router exteriors, however there is no clear technical reason why wood would be unsuitable as a casing material. Wood is not electrically conductive and so should not significantly weaken a wireless router signal. However, it is important to avoid use of nails or conductive metal in the construction, as these materials can weaken or block the wireless signal.