So if each door measures 30 inches wide the width of the rough opening should be 62 inches.
Normal size for french doors.
96 inches or 8 ft.
And generally are available in 2 inch increments.
Fitting with standard door openings stock door heights are 6 feet 8 inches.
To correctly determine the size of a rough opening for double or french doors measure the size of each door.
Your measured height is 132 0 cm.
Is now very common for newer homes and stock exterior doors are also commonly available in 30 and 32 inch widths.
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.
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.
The door used to go inward into the closer since the hallway between the two closets was too skinny for them to go outward.
Many companies will only sell french doors as pairs.
To get the total width multiply the width of each door by 2 and add 2 inches.
Deduct 10 mm from this value and the measurement will be 131 0 cm.
French doors the standard size for an exterior door is 80 inches by 36 inches which is 6 ft 8 inches by 3 ft.
Now you need to determine the height of the french door with the same procedure and deduct 10 millimetres from the smaller value.