To get the total width multiply the width of each door by 2 and add 2 inches.
Normal size for french doors.
Fitting with standard door openings stock door heights are 6 feet 8 inches.
French doors the standard size for an exterior door is 80 inches by 36 inches which is 6 ft 8 inches by 3 ft.
To correctly determine the size of a rough opening for double or french doors measure the size of each door.
The sizes that your french doors come in will be set by the manufacturer but they are generally between 30 and 72 inches wide per door.
Your measured height is 132 0 cm.
The door used to go inward into the closer since the hallway between the two closets was too skinny for them to go outward.
The width had the dimension 124 0 cm in the upper section and 123 0 in the lower.
Many companies will only sell french doors as pairs.
If you live in an older house or have an unusual door opening there are manufacturers who offer custom sizes.
Standard door sizes start at 1 foot 6 inches and are offered at 2 inch increases to 3 feet wide.
Is now very common for newer homes and stock exterior doors are also commonly available in 30 and 32 inch widths.
Now you need to determine the height of the french door with the same procedure and deduct 10 millimetres from the smaller value.
So if each door measures 30 inches wide the width of the rough opening should be 62 inches.
But a client who is moving and never home has the french split type of doors on a normal standard size doorway and they come outward and i can see all of the closet when i opened them at his open house.