The use of brass dowels on this floor mirror gives it the appearance of a floating mirror. Follow along at the link and build yourself a full length mirror.
Build a full length mirror or floor mirror using the free instructions located at the link. See how they created the trim using wood half circles. Neat.
Build this beautiful mirror frame using these free instructions.
Here is how you go about framing a large full length mirror using 1 x 6 and 1 x 2s.