FAQ Knowledge Articles

A narrow-rabbeted member in a divider system to create a series of divided lites in the daylight opening of the sash or panel. 

Grilles, ADL, GBG, and SDL with spacer bars must be connected to the rails and stiles. SDL without spacer bars may be freely attached. to the glass without contacting rail and stile. Bars can be assembled into a variety of patterns including grids, radius, diamond. They are sometimes called muntin bars.