How to get a constant vertical print line

[CCBtx]

I have a print layout where I use sub-summaries.

There is no body. That is because the table has thousands of records and I just want the sub-totals. I am trying to get two vertical lines to span the length of the page... on each side of the data field (like a spreadsheet). I am trying to accomplish this by setting each field's Field Border as "Right" and "Left"; Black; Hairline.

The problem is that I have a miniscule break in the line at each sub-summary. Is there an easy way to get one solid vertical line accross sub summaries?

[Vaughan]

Use a "real" vertical line that's the right size? Or re-size the field to fill the part completely.

The line needs to go from the top pixel in the part to the horizontal line that marks the bottom of the part. (The boundary belongs to the part above it.)