RE: "Sorry if I confuse you."
No problem. My wife does it all the time!
Among the actions installed with Photoshop are a couple that build frames with 50 pixel sides. If you're looking to create an action to do this, these would be good ones from which to learn.
If you haven't discovered these yet, open the Actions Palette menu. "Frames.atn" should be among those listed. Load this set and check "Wood Frame" and "Brushed Aluminium."