Double sliding doors
The Futura+ double sliding door has a floating mullion that slides aside, allowing for a big opening to enjoy the great outdoors.
The master is identical to a Futura+ single sliding door and can be operated as such. When the full opening is wanted, a lever on the slave is pulled and the slave can slide aside.
Internally the finished floor level can be made to meet the threshold creating the illusion of a low level threshold.