# Casement window

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Casement windows are one of the primary designs seen through the last three or more centuries of window history. A time-tested format that features an outward swinging window hinged from the side. Unlike the awning window, they do not protect against rain when open but allow for great ventilation nonetheless.

First seen in the early 1700s as a replacement to more traditional stone mullion windows, they continued to be the window of choice through this century until gradually seeing their use lessened as the elite and wealthy in society began to favour the sash window towards the end of the 1700s. They however remained the window of choice for cottage and terraced house building and are heavily used to this day.