shelf space
noun[U]
ukusthetotalamountofspaceavailablein astoretodisplaygoodsforsale, or theamountofspaceforparticulargoods:
shelf space for sthAstorethatorderstoo manycopiesof onebookhas lessmoneyandshelfspaceforothers.
Theretailerhasincreaseditsshelfspacededicatedto children'sDVDs.