I just built a half wall (sort of) with plexiglass in my basement to partition my server equipment from my woodworking area to keep my electronics more sawdust free. The top half of the wall is a piece of plexiglass that sits in a groove in the top and right studs. I have some leftover pine board that I want to use to frame around the inside edges of the plexiglass. How would I go about securing the pine board to each other on either side of the plexiglass? I want to do this so it takes the bow out of the plexiglass. I was thinking a screw with a wingnut on the opposite side of the plexiglass. Also, any other ideas for finishing this wall?

I just built a half wall (sort of) with acrylic sheet in my basement to partition my server equipment from my woodworking area to keep my electronics more sawdust free. The top half of the wall is a piece of acrylic that sits in a groove in the top and right studs. I have some leftover pine board that I want to use to frame around the inside edges of the acrylic. 

How would I go about securing the pine board to each other on either side of the acrylic? I want to do this so it takes the bow out of the acrylic. I was thinking a screw with a wingnut on the opposite side of the acrylic. Also, any other ideas for finishing this wall?