Stile and Rail French Door and Fire Rating Options

A French door can serve as an attractive office door and is available in non-rated and 20-minute fire ratings. Maiman offers several standard French door options. We can also manufacture custom French doors that offer more flexibility.

Masonite Architectural Wood Doors believe in the importance of flexibility, allowing you to choose the door you want. The charts below set out our minimum dimensions for our French doors as well as the maximum dimensions that will secure a UL- or Warnock Hersey-sponsored fire rating. In addition, we can usually construct doors that surpass the dimensions listed below and give them Construction Label Only (CLO) tags.

Masonite Architectural Wood Doors has set the standard in fire-rated French doors. Our 20-minute doors feature our unique all-wood true divided lite construction. This means that each lite is an individual piece of glass framed by pieces of wood instead of one large piece of glass with a wooden “grate” sitting on each side of the glass. The true divided lite construction has many advantages, but the primary reason people choose it is for its high quality finished look. All standard sticking options and lited elevations are available in 20-minute fire-ratings.

*The top edge of the bottom rail must be a minimum of 10″ above finished floor to comply with ADA requirements.

More Information

Dimension Ranges (Positive Pressure)
Max door height9′
Max door width4′
Min door thickness1 3/4″
Dimension Ranges (Neutral Pressure)
Max door height10′9′
Max door width4′4′
Max door thickness2 1/4″2 1/4″
Min door thickness1 3/8″1 3/4″
Min stile height9″9″
Min stile width3″5″
Min mullion width3″3″
Min rail length9″9″
Min top rail width3″5″
Min cross/lock rail width3″3″
Min bottom rail width3″9 1/2″
Min bar/munt width1/2″1″
Min bar/munt width1 3/8″1 3/4″
Minimum height and width are dependant on minimum dimensions of door components and will vary between elevations