"This is the front of the blast door ramp applied to my current blast door. Its made to apply an inset to the upper portion, but not the underside.

I also show this to highlight the need for a blast door edge piece with a narrow tip at the top, to match the long-angle slope blast door piece mounted to the corner of the door.

I should also say for the record that for whatever reason, even though the blast door long-angle slope endpiece is not higher than the original door frame with the stock blast door block and corner and edge pieces applied, the door cannot close with the mod-based long-angle slope pieces installed in the corners."