Inswing/Outswing Casementscasements-1 Choose from Contemporary American design or Classic European inswing and outswing casements, available as single units, multiple mulled units, or as French casements. American design provides for a contemporary crank handle at the base with multi-point locking. European design offers the following options: pushbars, sash locks & keepers, cremone bolts, and multi-point lock systems. Parrett offers casement windows that swing either in or out. You also have the choice of whether you would like the window to swing left or swing right. Parrett casements offer outstanding capabilities and excellent quality. Custom build your casement window today by contacting Parrett Windows.