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":
         │          ├─ Siegfried III. von Kleeberg
(Abt 1173 - Yes, date unknown)
         │          │ + Alveradis von Leiningen
(Abt 1168 - Yes, date unknown)
         │          ├─ Irmengard von Kleeberg
(Abt 1175 - Yes, date unknown)
         │          │ Heinrich I. von Isenburg
(Abt 1158 - Yes, date unknown)
         │          │          ├─ Jutta von Isenburg
(Abt 1195 - Yes, date unknown) =>
         │          │          │ + Anselm von Bicken
(Abt 1185 - Yes, date unknown)
         │          │          ├─ Heinrich II. von Isenburg
(Abt 1197 - Yes, date unknown) =>
         │          │          │ + Mechthild von Are-Hochstaden
(Abt 1207 - Yes, date unknown)
         │          │          ├─ Gerlach I. von Isenburg
(Abt 1200 - Yes, date unknown)
         │          │          │ + Imagina von Blieskastel
(Abt 1224 - Yes, date unknown)
         │          │          ├─ Eberhard von Isenburg
(Abt 1202 - Yes, date unknown)
         │          │          ├─ Friedrich von Isenburg
(Abt 1203 - Yes, date unknown)
         │          │          ├─ Luckard von Isenburg
(Abt 1205 - Yes, date unknown)
         │          │          │ + Heinrich von Hanau
(Abt 1200 - Yes, date unknown)
         │          │          │ + Philipp V.(I.) von Bolanden-Hohenfels
(Abt 1210 - Yes, date unknown)
         │          │          ├─ Mechthild von Isenburg
(Abt 1207 - Yes, date unknown)
         │          │          │ + Gerlach I. von Dollendorf
(Abt 1200 - Yes, date unknown)
         │          │          └─ Elisabeth von Isenburg
(Abt 1208 - Yes, date unknown)
         │          │           + Gottfried II. von Eppenstein
(Abt 1200 - Yes, date unknown)
         │          └─ Friedrich VI. von Mörle und Kleeberg
(Abt 1177 - Yes, date unknown)