The length of this opening has to be 54 1 4 inches the distance that you calculated in step 1.
Making a pocket door out of a french door.
Mullions frame and hold the glass in the door.
Remove the paper backing from the weatherstripping and apply the strips to the flat side of the door stop and soffit where the pocket door rests on the stop and soffit.
You can choose to buy mullions in the same wood as the door or different wood for contrast.
Use a circular saw combined with a carpenter s square or a reciprocating saw if space is tight.
Buy mullions from the store to fit the door.
By centering the doors are you making a tripping hazard.
I like the suggestion someone made about sliding glass doors.
Or you might even consider french.
A door will need two mullions to make four light windows.
Select narrow weatherstripping that will not interfere with the movement of the door and placement of the door over the door stop and soffit.
First of all since these doors will be exposed to the elements it s a good idea to make them out of rot resistant hardwood such as white oak or mahogany.
And a good thought above too.
By moving them to the far end it might provide a smooth in and out.
Cut the portion of the plate out that will form the opening for the french doors.