Precisely calculate the length of ducts (ducts) you need and count at least 5m to get around a door.
The "classic" installation, with a 45° cut and an edge-to-edge connection, is no longer allowed by the standard. Today, the pipes are mounted with connecting accessories that clip to treat the angles...
There are three types of products
Moldings are installed around doors or above decorative baseboards.
The equipment is mounted on the wall in contact with the moldings.
As needed, they are painted or left untreated.
Larger than the moldings, the chutes can accommodate more cables and are therefore often used around the board.
Those that incorporate an apparatus are rather reserved for offices.
In various colors and textures, the baseboards decorate the bottom of the walls in addition to accommodating the electric cables.
Wooden models to paint are very discreet.