Overall size is 24" x 21" with hanger hardware on the 24" side
There is a place for hardware to be mounted to make this into a 21 x 24" frame.
The photo/picture mounting area measures 15 7/8" x 12"
These weigh almost 4 lb. apiece. .. 12 lbs. to ship
Additionally the box is considered oversized by the Post Office.
No smoking, no pet environment.