Might be very basic but I only find panel that is the same width of the box (box for me = where all control are.. under the panel).
My panel width is 34 inches and the box width is 26. So I have 4 inches each side that is in the air. My plexiglass is 34 inches width and will be over the panel (a paper is between the plexiglass and the panel for art). What is the best way to have something to hold the plexiglass? If the panel would have been 26 inches, I would have been able to built-in the plexi by having the side of the box going more high this way the plexiglass would have been skeezed but I cannot do this if the panel width is larger than the box.
How do you do it?
Reference:
This is something that represent what I am doing, panel is wider than box:

This is what would have been more easy I think because I could have built-in the plexi because the side can skeeze the plexi:

Any idea?