Casement

An operating style of window with a side-hinged sash that opens from the side towards the exterior.

Awning

An operating style of window with a sash hinged on the sides, and swings open at the bottom towards the exterior.

Single Hung

An operating style of window, with fixed top panel and a lower sash that slides up vertically.

Double Hung

An operating style of window with an upper sash that slides down, and a lower sash that slides up.

Glider

An operating style of window that has a sash which slides horizontally to open.

Hopper

A window unit in which the top of the sash swings inward.