One of the problems you may face is that the elements in the panel may not be square, and the dimensions may be "funny" (e.g., 5 7/8" x 6 1/8" instead of 6x6). You may have to do some calculating to figure out what size strips to use to frame the pieces you cut from the panel, and you may want to try to straighten the panel out if it is warped. (Ask me how I know.) There are ways of dealing with this, and if you need help just ask this board. (Be sure to post a picture of the panel.)