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":
Carrie Shubert
(26 Sep 1873 Tennessee, USA - 18 Feb 1962 Maysville, Garvin County, Oklahoma, USA)
Edgar Long McCroskey
(17 Sep 1870 Cleveland, Bradley County, Tennessee, USA - 14 Jun 1941 Maysville, Garvin County, Oklahoma, USA)
         ├─Hettie J McCroskey
(25 Feb 1907 Oklahoma, USA - 13 Jun 1995 Maysville, Garvin County, Oklahoma, USA)
         ├─Rosco Stanley McCroskey
(14 Oct 1909 Oklahoma, USA - 30 Jul 1997 Maysville, Garvin County, Oklahoma, USA)
         ├─Edith J McCroskey
(Abt 1914 Kentucky, USA - ??)
         ├─Earl McCroskey
(Jul 1895 Tennessee, USA - ??)
         ├─Mary McCroskey
(4 Jul 1898 Tennessee, USA - 15 Oct 1968 Garvin County, Oklahoma, USA)
         │ + Robert S Rice
(25 Oct 1892 Arkansas, USA - 8 Jun 1971 Oklahoma, USA)
         └─Robert McCroskey
(7 May 1904 Tennessee, USA - 7 Apr 1975 Oklahoma, USA)
          Willie May Kern
(1905 Oklahoma, USA - ??)