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: Harm Bijl
(27 Sep 1865 Nieuwe Pekela, Groningen, Nederland - 06 Jan 1920 Groningen, Groningen, Nederland)
Mother: Aaltje Mellius
(20 Nov 1864 Nieuwe Pekela, Groningen, Nederland - 27 Feb 1929 Nieuwe Pekela, Groningen, Nederland)
Klasina Bijl
(24 Sep 1892 Nieuwe Pekela, Groningen, Nederland - 01 May 1969 Nieuwe Pekela, Groningen, Nederland)
Harm Siepel
(03 Apr 1895 Nieuwe Pekela, Groningen, Nederland - 19 Jan 1978 Nieuwe Pekela, Groningen, Nederland)
         ├─ Lammert Siepel
(31 Jan 1918 Nieuwe Pekela, Groningen, Nederland - 19 May 1986 Stadskanaal, Groningen, Nederland)
         │ Geertruida Zuiderhoek
(28 May 1917 Nieuwe Pekela, Groningen, Nederland - 17 Mar 1984 Nieuwe Pekela, Groningen, Nederland)
         │          └─ NN Siepel
(30 Jun 1946 Winschoten, Groningen, Nederland - 30 Jun 1946 Winschoten, Groningen, Nederland)
         ├─ Harm Siepel
(06 Sep 1919 Nieuwe Pekela, Groningen, Nederland - 12 Sep 2000 Stadskanaal, Groningen, Nederland)
         │ Frouke Jansen
(14 Nov 1921 Stadskanaal, Groningen, Nederland - 21 Oct 2001 Stadskanaal, Groningen, Nederland)
         │          ├─ Living
         │          └─ Living
         ├─ Aaltje Siepel
(22 Mar 1928 Nieuwe Pekela, Groningen, Nederland - 25 Aug 2011 Nieuwe Pekela, Groningen, Nederland)
         │ Berend Mellema
(13 Mar 1929 Oude Pekela, Groningen, Nederland - 16 Apr 1996 Oude Pekela, Groningen, Nederland)
         │          └─ Living
         └─ Grietje Siepel
(01 Aug 1929 Nieuwe Pekela, Groningen, Nederland - 06 Oct 1929 Nieuwe Pekela, Groningen, Nederland)