Boneh, Soseir, Makeh B’patish – 13 – Mechitza Hamateres – 3; Covering Sefarim Bookcases – (Klal 39 Siman 4) – Meleches Shabbos – S0793
This shiur continues discussing a temporary mechitzah, specifically as it relates to being matir tashmish hamittah. It defines the practical size of a bookcase in order for it to be considered a separate reshus. In a related discussion, it also addresses the halachic permissibility of changing a child’s diaper in the presence of seforim.