Note: For the front cross beam the dimensions are flipped in terms of the width for each face of the beam. The faces where the width should be 1" is actually 2" and the faces where the width should be 2" is actually 1". This was unfortunately a mistake noticed by Mr. Cribbs fairly late in the process of making CADing this project, and moving forward I will need to be more careful of what dimension I label the parts.