From 1732 the Enclosure Square (Klausurgeviert) was erected in a second building phase. The overall effect of the ensemble, which is still uniform today, is the result of the uniform pink coloration and the contrasting white frames around the windows and the white pilasters that divide up the facades. The building execution was the responsibility of Christian Wiedemann, who probably has also assumed part of the planning.
After ten years the architect Johann Michael Fischer began to build the east tract. The Chapter Hall (Kapitelsaal) and the Enclosure Cells (Klausurzellen) were located in this wing of the monastery, which is characterized by an elaborately designed middle pavilion. Only the first third of the south tract was carried out, and continued building on the already completed foundations was left to the Württemberg Army Administration (Heeresverwaltung) from 1915 to 1917.
The northwestern tract of the Enclosure Square was available to monastery guests. These magnificently appointed state-rooms demonstrated great affluence and the self-confidence of this important baroque monastery. Various rooms with individual, uniform coloration were sumptuously furnished. The ornamental ceiling plasterwork largely still preserved in its original form deal with the Wiblingen main relic, the holy cross and scenes of saints, like those of the Order's founder Benedict.
The famous Library Hall (Bibliothekssaal) of Wiblingen Monastery has the dimensions and the extravagant furnishings of a holy festival hall. It served as the representation room of the ecclesiastic residence for receiving guests. With its manifold appointments, the hall glorifies extremely varied human knowledge and heavenly wisdom. The ceiling fresco by Martin Kuen and the allegories carved by Dominikus Hermenegild Herberger around 1750 are attractive visual focal points of this state-room.
The entire convent gathered in the Chapter Hall of the monastery. This room covers two floors and even in Wiblingen it is, in addition to the library, among the most magnificent representation rooms. The ceiling fresco painted by Franz Martin Kuen in 1754 shows scenes around the two important Wiblinger topics, the cross relic and the monastery's founding.