endcap

or end-cap, end cap

[ end-kap ]
/ ˈɛndˌkæp /

noun

a shelving unit for store merchandise that is placed at either end of the main shelving unit along an aisle: an endcap displaying some items on sale.
the retail space at either end of a strip mall: a bank endcap with a drive-through window.

Origin of endcap

First recorded in 1980–85; end1 + cap1