The standard size of a sliding door or french exterior door there are some standard guidelines for the dimensions of a door.
Normal size for french doors patio.
On the masonite website it shows their standard sizes for interior french doors to be 12 16 18 or larger.
The standard size of a patio door with a 2 panel configuration is 6 8 x 6.
But just like how no home is the same no door is quite the same either.
However i would not recommend a full glass door at the top of a stairs.
A slider saves space indoors and out.
But width sizes vary and depend primarily on the patio door s configuration.
When you said french doors i assumed that you wanted them with glass since that is what a french door is.
Single slider courtesy of pella.
Prehung pair from 2 470.
The standard height of a patio door is 80 inches 6 feet 8 inches.
200 series hinged patio doors in vinyl clad wood.
You would need 2 15 s or a tad smaller for your space.
French doors are used as both entry patio doors and as interior doors that separate two spaces.
Taller bottom rails give single panes french door cred.
Patio french doors often open on to a deck or a backyard patio and may be used with a screen door system.
These doors are popular because they allow some privacy while allowing a visual connection between two spaces.
You will find the two and three panel patio door configurations which have different widths.