What is a muntin?

What is a muntin?

• A. A decorative trim
• B. A primary structural member
• C. A secondary framing member to hold panes within a window wall or glazed door
• D. A type of sealant

Answer: (C)

A muntin is a secondary framing member that divides and holds the individual panes of glass within a window wall or glazed door. It runs between the frame to create a grid of smaller panes, providing support for the glass pieces. It’s not the main structural member that carries load (that would be a mullion or the frame itself), and it isn’t a sealant. While muntins can affect the appearance by creating a multi-pane look, their primary function is to subdivide and secure the panes within the window assembly.

A muntin is a secondary framing member that divides and holds the individual panes of glass within a window wall or glazed door. It runs between the frame to create a grid of smaller panes, providing support for the glass pieces. It’s not the main structural member that carries load (that would be a mullion or the frame itself), and it isn’t a sealant. While muntins can affect the appearance by creating a multi-pane look, their primary function is to subdivide and secure the panes within the window assembly.