EXAMPLES FROM THE WEB FOR RAILING
He fell back a pace to the railing, his features working with his deep chagrin.
The Baron had a key, with which he locked the railing behind them.
Suddenly some of the pigeons flew down on the railing of the flower-garden.
He went out again to the balcony, leaned on the railing and looked over.
Everybody is abusing him now, and railing at him and insulting him.
He groaned aloud, and, with his arms on the railing, thought and thought.
The next afternoon he came in again and asked me to step outside the railing.
But suddenly he stopped by the railing, and stood gazing out into the east.
The men, leaning against the railing, pushed it harder all along the line.
"He will doubtless let you have your say about that, my dear," Captain Hagberd intimated to her across the railing.
"construction in which rails form an important part," early 15c., verbal noun from rail (v.2). Technically, railings (late 15c.) are horizontal, palings are vertical.