Hello Kat, Bifold doors will only be able to slide opposite of each other, not in the same direction.
Hello Jw, you can not cut the bi-fold doors, you an special order if the size needs to be smaller than normal.
Hello IATBFAT, The actual door size is 23.5" x 79" so two doors together would need a finished opening of 47.5" x 80.75". If you do not have a minimum of this, then these doors will not fit.
Hardboard is denser than particle board. It is used for the face of the door and is essentially Masonite.
No U need 2
Yes. Above support hardware not included
24in. X 82in. to allow support from above.
Yes see photo.