Doors and Windows - Closet doors

I have gutted out two bedrooms to make into one large room for our 3 kids. Question: The back wall is 112 inch wide and I am building a reach-in closet, possibly with four doors.

Where exactly should I frame the 2x4's for the header and ends (the area between the side wall and the door)? How much room should I allow to compensate for moldings and door hinges, etc.

I also would like to know how I can mount the middle two doors without having to put in a post in the middle. Are there special hinges that can be mounted onto the floor? Thanks.

to me, the easiest way to do it would be to hae 2- 48" finished openings for your closet doors. If that's the case, you'd have 3" / 50" rough opening / 6" / 50" rough opening / 3". You would have 2 headers that would be 53" long. (This is assuming the headers aren't load bearing, because if they are, you have to transfer the header weight all the way to the footing.)

The 50" x 82" rough openings will give you barely enough room to install the jamb for your closet doors.

I don't see a problem with an 8 foot bi-fold (four 2' panels) door. Your door co. can give you the rough opening. Alternately you can put in an 8' bypass door (two 4' panels). Both solutions would eliminate a center post. Typically, in new construction, we would put in a 4x12 header. This provides the correct height opening, and if non-bearing, is self supporting.

Thanks for the tip. After further reviewing the room where the closet doors are to be installed, I am thinking of going ahead with 4 doors of equal lengths (approximately 24" per door) and then leaving about 9-1/2 inch between the side walls and the first and last closet doors. Does that make sense to you guys?

Looks like the middle two doors will have some kind of hinge that get mounted to the floor and header to support the doors. Not sure where to get them, but I'm sure to find an internet company that sell such hinges.

Thanks!