The area between two or more sheets of glass in a window or door. Airspace Grilles (or Grilles in the Airspace)

A single-sash window that's hinged at the top of the sash and uses a handle crank that allows the bottom of the window to swing out towards the exterior of a home.

A system used in double- or single-hung tilt windows that holds the operating sash open in any position and allows the window to be opened or closed with minimal effort. Bay Window

A bay window combination featuring two sash set at a 90-degree angle. Brick Mould

Space between patio door panels that provides a contemporary profile and improved sight lines.

The ornamental material used to hold decorative pieces of glass in place. Caming is typically made from brass, lead or zinc in a variety of finishes. Casement Window

The horizontal sash members on a double- or single-hung tilt window or the vertical sash members on a slide/by window that come together when the windows are closed. Circle Top (or round top)

Refers to the portion of a wood window or door that's covered with aluminum, fiberglass or vinyl on the exterior side of the frame and/or sash. Weather Shield uses a composite sash constructio [..]

A material used in Weather Shield window and door spacer bars that absorbs water and helps remove moisture. Direct-Set

A formed aluminum or vinyl accessory piece that's installed along the top of clad windows and doors that allows water to run off of the unit instead of seeping into the unit and a home.