The paper length is not relevant since the chart flows from one page to the next.
Mobile
in.
mm
Portrait
2.75
70
For smart phones, not for printing
Landscape
5.5
140
For smart phones, not for printing
USA & Canada
in.
mm
Letter Portrait
8.5
216
Also Legal Portrait
Letter Landscape
11
279
Legal Landscape
14
356
Also Ledger Portrait
Ledger Landscape
17
432
International
in.
mm
A5 Portrait
5.82
148
A4 Portrait
8.25
210
Also A5 Landscape
A4 Landscape
11.71
297
Also A3 Landscape
A3 Landscape
16.54
420
The Text+ programs assume that the right and left margins are each about 25mm (1/2 inch) wide.
On the Format for Printing page, differences in page margins can be accommodated by the "fudge factor":
Catharine Beekman
(1744 Middlesex County, New Jersey, USA - 1840 Adams County, Ohio, USA)
John Skillman
(1742 New Jersey, USA - Bef 1777 Alexandria Township, Hunterdon County, New Jersey, USA)
:         ├─Christopher Skillman
(9 Feb 1767 Brooklyn, Kings County, New York, USA - Mar 1835 bur.Paris, Bourbon County, Kentucky, USA)
:         ├─Abraham Skillman
(1768 Somerset County, New Jersey, USA - 11 Dec 1862 Bound Brook, Somerset County, New Jersey, USA)
:         ├─John Skillman
(1770 Alexandria Township, Hunterdon County, New Jersey, USA - 1858 Breckinridge County, Kentucky, USA)
:         │ + Catharine Skinner
(1768 New Jersey, USA - 1855 Breckinridge County, Kentucky, USA)
:         ├─Isaac Skillman
(1772 Alexandria Township, Hunterdon County, New Jersey, USA - ??)
:         └─William Skillman
(30 Mar 1777 Alexandria Township, Hunterdon County, New Jersey, USA - 18 Sep 1862 Hendricks County, Indiana, USA)
:          + Nancy Henton
(8 Sep 1788 Rockingham County, Virginia, USA - 21 Jul 1843 Hillsboro, Highland County, Ohio, USA)
+ Jesse Edwards
(4 Mar 1754 Bucks County, Pennsylvania, USA - 2 Nov 1856 Adams County, Ohio, USA)