Stairs and partitions
The most common type of (main) stairway consists of two flights of wooden stairs, where the main landings are incorporated into the joist framework. The mid-landings are also part of the joist structure, though of smaller dimensions and without pugging. Mid-landings are supported by the surrounding transverse walls.
In buildings with internal timber-framed walls the construction of the transverse (staircase) wall and joists are closely connected, thereby ensuring the stability of the walls.
Recommended literature in Danish:
Herholdt: Vejledning i Husbygningskunst (1877)
G. v. Huth: Vejledning i konstruktion af trætrapper (1887)