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: Roelf te Velde
(Abt 1858 Hoogezand, Groningen, Nederland - Yes, date unknown)
Mother: Siemontje Zandt
(Abt 1863 Stedum, Groningen, Nederland - 29 Nov 1896 Wildervank, Groningen, Nederland)
Jantje te Velde
(20 Aug 1887 Stadskanaal, Groningen, Nederland - 08 Nov 1918 Dennenoord, Zuidlaren, Drenthe, Nederland)
Hendrik Linzel
(01 Jan 1882 Stadskanaal, Groningen, Nederland - Yes, date unknown)
         ├─ Marchiena Jantina Linzel
(11 Jan 1909 Emmen, Drenthe, Nederland - Yes, date unknown)
         ├─ Roelf Linzel
(11 Feb 1911 Emmen, Drenthe, Nederland - 11 Nov 1911 Emmen, Drenthe, Nederland)
         └─ Siemontje Linzel
(11 Oct 1912 Emmen, Drenthe, Nederland - Yes, date unknown)