The Maxi empty housing consists of a cover with a hinged lid made of die-cast zinc and a built-in box made of highly impact-resistant thermoplastic and four M20. Unevenness in the floor can be easily compensated for with the help of four adjusting screws. The empty housing is suitable as a floor socket in dry rooms; when installed in a wall, it is drip-proof in accordance with IP41. It can be installed for all standard sockets with an 80 mm cover and support ring fastening from the areas of installation, communication and telecommunications technology. The housings can be connected in all directions to create complete units using connecting clips on the back.