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: Berent Filippus
(1724 Blijham, Wedde, Groningen, Nederland - Yes, date unknown)
Mother: Aafke Hindriks
(1725 Blijham, Wedde, Groningen, Nederland - Yes, date unknown)
         ├─ Trientje Molanus Huis
(26 Oct 1796 - Yes, date unknown)
         │ Helenius Tjarks Schuring
(15 Feb 1787 Blijham, Wedde, Groningen, Nederland - Yes, date unknown)
         │          └─ Sieka Schuring
(20 Mar 1834 Blijham, Wedde, Groningen, Nederland - Yes, date unknown)
         │           + Feiko Roelfs Roelofs
(04 Apr 1827 Bellingwolde, Groningen, Nederland - 08 Feb 1868 Bellingwolde, Groningen, Nederland)
         └─ Geert Molanus Huis
(1802 Blijham, Wedde, Groningen, Nederland - 09 Aug 1842 Oudeschans, Bellingwolde, Groningen, Nederland)
          + Anna ten Have
(08 Dec 1812 Blijham, Wedde, Groningen, Nederland - 09 Feb 1897 Winschoten, Groningen, Nederland)