The sash is the moveable part of a window made up of the vertical and horizontal frame that holds the glass. On a double-hung window, the check rail is the part where the bottom part of the upper sash and the upper part of the lower sash come in contact. Also known as the middle of the window.

What is the glass portion of a window called?

Pane – A single sheet of glass. Sash – The vertical and horizonal moveable parts of the window that contain the glass.

What are the six parts of a window?

Parts of a Window

  • Head. The main horizontal member forming the top of the window or door frame.
  • Jamb. The main vertical members forming the sides of a window or door frame.
  • Frame. The combination of head, jambs and sill to form a precise opening in which a window sash or door panel fits.
  • Glazing. …
  • Pane. …
  • Sash. …
  • Sill. …
  • Muntin Bar.

What are the names of parts of a window?

Here are the components of a window sash:

  • Pane. The window pane is the piece, or pieces, of glass in your window.
  • Window Rail. The top and the bottom parts of sashes are called the window rails. …
  • Spacers. …
  • Sash Lock. …
  • Lift. …
  • Weatherstripping.

What is a window pane?

Window panes are the sheets of glass inside the window frame. They may be single-pane thickness, double-pane, or energy efficient. They can be plain glass or ornate. They may come in a single large sheet, or there may be varying shapes and sizes of panes set within the frame.

What is the piece of wood called above a window?

Jamb: The pieces that form the top, sides, and bottom of the window frame (includes the head).

What is a window Stile?

Stile. Stiles are the main vertical members in the framework of a sash, found at the sides of a window.

What is the window casing?

What is casing? Quite simply, it’s a moulding profile which frames (or trims) a door or window. Casing is functional as well as decorative. The main purpose of casing is to surround all doors and windows, covering any space or gap left between the drywall and frame.

What is window grids?

Grids (or muntins or grilles) are strips of material that simulate smaller panes of glass. Use our quick guide to window grids to help make decisions regarding the style of your windows.

Why do windows have panes?

New Form of Grids
Most windows now have multiple layered panes of glass for energy efficiency. So, grids can be placed in between these panes and be on the inside of the window.

What is a window header?

What Is a Window Header? A header is any strong beam that horizontally spans an opening, such as a doorway. So, a window header is one that spans the top of a window opening. The header is the structural element—much like a bridge—that allows the space below to be open, not closed.

What are window crossbars called?


A mullion refers to the vertical piece of wood separating the panes of glass, not both the verticals and the horizontal stile pieces. Today, mullions are the vertical bars between the panes of glass in a window. As with muntins, their role is primarily decorative now.

What holds a window in place?

The frame is what holds the window in place. This keeps the window secure in the wall as well as adding a bit of style. There are several parts of the frame: The head is top horizontal part of the frame. The vertical boards between the head and the sill are the jambs.

What are the parts of a sash window called?

Understanding sash windows – the individual parts

  • Sash, or sashes. There will usually be two sashes, which are the frames that contain the glass. …
  • Box frame. This is the window frame that contains the sashes.
  • Sash cord. …
  • Sash weight. …
  • Staff bead. …
  • Parting bead.

What is a muntin bar?

Muntins, also referred to as muntin bars or muntin grids, are a decorative option on windows used to make one pane of glass look like multiple panes framed together. This can have the effect of making a modern window appear more colonial or of a more classic design.

What are fake muntins called?

Some window grills are imitation muntins, meaning they appear to look like muntins, but they don’t truly separate individual panes of glass. Instead, they attach to one large piece of glass. This often appears on newer homes, as it provides the same beauty of muntins without the risk of causing as much draft.

What are internal muntins?

What Is a Window Muntin? Muntin refers to the vertical dividers that separate glass panes in a window. Muntin applies only to the inner vertical pieces; the outer pieces that form the frame are stiles and rails.