There is a small room next to the school gym in which all sorts of P. E. equipment (balls, hoops, rackets etc.) is stored. What is this storage room called?
The equipment room.
Equipment Room ?
A storage room.
Equipment room. Because it holds the sports equipment
Such a room is generally called an "equipment room." That room at my high school actually had the words "Equipment Room" on the door. That said, that room at my high school had the nickname "The Armory." That's what everybody called it, maybe because that's what coach called it or maybe coach called it that because that's what everyone called it, but that's not what it's actual name was.
It's called a garbage emporium...
the "equipment room."