Barn Door

Related terms

• Bay Window

  A multi-panel window assembly that projects outward from the wall in an angled bay, adding light, view, and interior space.

• Balancer

  The spring or counterweight mechanism in a hung window that holds the sash open at any height. A common failure point in older windows.

• Bifold Door

  A door of hinged panels that fold against each other, common on closets and as wide multi-panel patio walls.

• Backer Rod & Sealant

  A foam rod set in the perimeter gap before exterior sealant, sizing the joint so the sealant performs and lasts.

• Bow Window

  A curved projecting window of four or more equal units forming a gentle arc, a softer alternative to the angular bay.

• Awning Window

  A window hinged at the top that swings out from the bottom, shedding rain so it can stay open in light weather. Often used high on walls…

• Casement Window

  A window hinged at the side that swings outward via a crank. Seals tightly when closed, giving strong energy performance and full-opening…

• Astragal

  The vertical molding/seal where a pair of doors meets, closing the gap and providing a stop and weather seal.