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: Haiko de Wal
(09 May 1879 Westerlee, Scheemda, Groningen, Nederland - 12 Aug 1957 Winschoten, Groningen, Nederland)
Mother: Grietje de Boer
(14 Aug 1880 Onstwedde, Groningen, Nederland - 11 Sep 1952 Winschoten, Groningen, Nederland)
Haiko de Wal
(15 Jul 1904 Westerlee, Scheemda, Groningen, Nederland - 10 Apr 1964 Zuidhorn, Groningen, Nederland)
Reina Woltjer
(05 Nov 1904 Finsterwolde, Groningen, Nederland - 16 Jun 1954 Groningen, Groningen, Nederland)
         ├─ Haiko Freerk de Wal
(Abt 1939 Finsterwolde, Groningen, Nederland - 12 Dec 1947 Groningen, Groningen, Nederland)
         └─ Pieterke de Wal
(Aug 1941 Finsterwolde, Groningen, Nederland - 27 Nov 1941 Groningen, Groningen, Nederland)