"glass panes" is a correct and usable phrase in written English.
You could use it in a sentence such as, "The windows of the old, abandoned house were cracked, with small pieces of broken glass panes scattered on the floor."
Glass panes separate detainees from visiting relatives.
Glass panes cracked and crashed into the street.
The only solution is replacement of the double glass panes.
The beachfront facade is a semicircle of glass panes.
They did like, the biggest glass panes that had ever been done.
Glass panes protect the sculptures, bronze and plaster torsos, expressive faces, winged figures.
The picture looks like a shot taken through glass panes with rainwater running down.
A piece of cardboard was tacked up where one of its glass panes should be.
The structure is made of glass panes framed by glazed, wooden planks.
Glass panes seal off the theater from the hubbub of the bar upstairs.
Strips of white tape on glass panes, I recalled that, and a vacant security desk.
