For most windows and for mounting curtains on French doors, the smaller, 3/8″ hardware is appropriate. It can span up to 44″ between supports (a bit less for very heavy curtains).
Brackets are sold by pairs.
All items are unlacquered.
The projection is measured from the surface upon which the bracket is mounted to the back of the rod. On all brackets, the “barrel” unscrews and slips over the end of the rod.
