Plan and measure for bracket placement. Ceiling mount installation normally requires attaching two end brackets to a wall. Removing the ceiling stirrup from the bracket will allow you to attach the rod anywhere you choose. Detach the ceiling stirrup by removing the screw holding it in.
Snap a plumb line across the length of the area plus three inches on each side. Using the closest wall as a guide, measure out the distance from the wall you want to install the rod and mark the beginning, middle and end of the line with a pencil. Tack the plumb line in place at the ends of the line and snap, then check to make sure the line is straight. If it is not, wipe the line off with a rag, measure and snap the line again.
Mark a spot three inches from each end of the line for placement of ceiling stirrups. The support required for your rod will depend on the weight of the fabric room divider and the length of the area. If your fabric is heavy or if the pole will be extending across the width of the room, mark evenly for rod supports every four to five inches.