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: Albert Berends Bos
(10 Aug 1851 Wildervank, Groningen, Nederland - Yes, date unknown)
Mother: Jantje Poppe
(29 Jan 1854 Nieuwe Pekela, Groningen, Nederland - 16 Jan 1933 Oude Pekela, Groningen, Nederland)
Mettje Bos
(24 Nov 1875 Nieuwe Pekela, Groningen, Nederland - 18 Mar 1962 Oude Pekela, Groningen, Nederland)
Jan Veltman
(1875 Borger, Drenthe, Nederland - 26 Jan 1950 Oude Pekela, Groningen, Nederland)
         ├─ Riekent Veltman
(30 May 1898 Westerlee, Scheemda, Groningen, Nederland - Yes, date unknown)
         │ Geessina Grave
(02 Oct 1898 Nieuwe Pekela, Groningen, Nederland - Yes, date unknown)
         │          └─ Mettje Veltman
(02 Oct 1920 Oude Pekela, Groningen, Nederland - 16 Sep 1943 Saerbeck, Nordrhein-Westfalen, Deutschland)
         │           + Abel Stuut
(Yes, date unknown - Yes, date unknown)
         └─ Albert Veltman
(22 Feb 1902 Westerlee, Scheemda, Groningen, Nederland - Yes, date unknown)
          + Dievertje Jager
(27 Mar 1910 Winschoten, Groningen, Nederland - Yes, date unknown)