Open stringer. The new-house void.
No risers. One black aluminium beam carries the oak treads. New houses in Britain and North America specify this when the hall is a room. The plant machines the hardwood and the aluminium. Installation stays local.
These pictures are a direction, not a finished Aurinex stair. The plant machines hardwood and aluminium profiles. Installation stays local.
Open stringer
The same beam, two rooms.
One rises to a gallery with a chair. One sits beside supper.