The top of the capital block can be placed at any height by installing header at 13 1/2" above the desired capital height.
Rough opening needs to be placed 6 1/4" away from a corner to allow for the capital width. If two openings meet in a corner, rough opening needs to be 8 3/4" away from corner.
Capital Vertical Height is 2 1/2" and extends 1 1/2" beyond casing.
Elliptical Casing extends a maximum of 4 5/16" above rough framing header excluding optional keystone.