Strong back

I played around with several methods of making the strongback- and finally decided the best and simplest option would be to use a clear, dead straight 2x10.

I used MDF and 2x4 braces to hold the strong back up- it is level, stable, and sturdy. The notches for the frames are cut, but I have been improving them by adding blocks of MDF on wither side to ensure the right height and angle of the frames.