drying place; place for drying laundry
Refers to a designated area, often outdoors or on a balcony, for hanging laundry to dry.
I aired the futon at the apartment's drying area.
物干し竿 is a clothes-drying pole, a tool used at a 物干し場.
Compound of 物干し (ものほし, 'drying laundry') + 場 (ば, 'place').