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STEP 1: INSERT and EXPLODE the BLOCK you need into your drawing.
STEP 2: STRETCH as needed.
STEP 3: COPY the Rough Opening lines to the appropriate location and dimension as needed. (NOTE: The Rough Opening stretched with the elevation as it was being modified.)
Frame Elevations are drawn with a solid Polyline. Rough Openings are drawn with a dashed Polyline.
FYI: Rough Openings are measured from the frame rabbet as follows:
JAMBS – add 5/8" per side HEADS – add 13/16" above