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":
Father: Thomas Benjamin BOLEN
(Sep 1847 Mercer, Loudoun, Virginia, USA - 1906 Summers, West Virginia, USA)
Mother: Rachel Anne LILLY
(17 Dec 1852 Mercer, Loudoun, Virginia, USA - 9 Feb 1932 Whitby, Raleigh, West Virginia, USA)
Ada Olive BOLEN
(19 Mar 1887 Summers, West Virginia, USA - 29 Mar 1972 Beckley, Raleigh, West Virginia, USA)
James William FARLEY
(9 Apr 1883 Ellison, West Virginia, USA - 1 Aug 1956 Summers, West Virginia, USA)
         └─Robert Thomas FARLEY
(16 Feb 1923 West Virginia, USA - 12 Oct 1998 Beckley, Raleigh, West Virginia, USA)
          Gladys Chana MOYE
(9 Mar 1926 West Virginia, USA - 24 Apr 2010 Beckley, Raleigh, West Virginia, USA)