I used 3/4 aluminum angle.. but they also have 1/2 inch if u want, as well as one thats like 1/2 on one side and shorter on the other.. Anyways, here is how the look for me.. To hold the marquee up from the back, i just use 2 small l brackets, or really anything to just screw behind it.. I chose to use little screws on top of the angle aluminum, but you can use adhesive or other means for a clean look..