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":
                   ├─ Graaf Rodger I. de Carcassonne
(Abt 940 Carcassonne, Occitanie, France - Yes, date unknown)
                   │ Adélaïs de Melgueil
(Abt 947 - Yes, date unknown)
                   │          ├─ Ramon-Rodger I de Carcassonne
(Abt 967 - Yes, date unknown)
                   │          │ + Garsinde de Béziers
(Abt 975 - Yes, date unknown)
                   │          ├─ Arnaudo de Comminges
(Abt 970 - Yes, date unknown)
                   │          ├─ Peter Rodger de Carcassonne
(Abt 975 - Yes, date unknown)
                   │          ├─ Ermesinde de Carcassonne
(Abt 977 - Yes, date unknown) =>
                   │          │ + Graaf Ramón Borrell III. de Barcelona
(972 Barcelona, Cataluña, España - Yes, date unknown)
                   │          └─ Bernardo Rodger Foix
(Abt 980 Carcassonne, Occitanie, France - Yes, date unknown)
                   │           + Gersende Bigorre, Comtesse & heiress of Bigorre.
(Abt 990 - Yes, date unknown)
                   ├─ Odo de Comminges
(Abt 943 - Yes, date unknown)
                   ├─ Raimund de Comminges
(Abt 945 - Yes, date unknown)
                   └─ Arsende de Comminges
(Abt 950 - Yes, date unknown)
                    Guillaume III d' Arles
(Abt 942 Provence, Provence-Alpes-Côte d'Azur, France -                     Sep 1037 Avignon, Provence-Alpes-Côte d'Azur, France)
                             ├─ Odilia de Provence
(Abt 975 - Yes, date unknown)
                             │ + Miron von Sisteron
(Abt 970 - Yes, date unknown)
                             │ + Leotger von Nizza
(Abt 960 - Yes, date unknown)
                             └─ Adelheid de Provence
(Abt 977 - Yes, date unknown) =>
                              + Bernard I. de Besalú
(Abt 955 - Yes, date unknown)