In order to make a large box in my trunk i need to make the slot ports out of something that is 1/4" thick. I think this is ok because they are just ports but i dont know what would be the best material to use becasue 1/4" isnt very easy to screw into. Is this ok and should i use mdf. Would glue and brad nails work better?
They are completly external slot ports.
Is 84^2 inches good for port surface area. The port velocity would be low enough but for SPL applications do i need to take anything else into account.