A typical casement window is vertically hung, hinged on either the left or right side and opens out. A French casement window has two separate panes of glass, hinged on both sides, and opens unobstructed in the center. An awning style window is hinged on the top and opens out from bottom up. These types of windows were popular prior to the sash window. They can be found on older style Prairie and Tudor homes.
Though the casement window is not as popular as it once was, replacement windows are still being manufactured. A new replacement one typically has a crank-style handle, but some have lever style handles that also act as locking mechanisms. Like other styles of windows, it can be installed as a single unit, or grouped together. This type of window is ideal to place above cabinets, countertops, or places that are slightly more difficult to reach because the handle mechanisms are easy to operate.
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