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":
┌──Sheesley, Mr John James Sr
(6 Apr 1855 Pennsylvania, United States of America - │ 8 Dec 1893 Hamilton, Jefferson, Pennsylvania, United States of America)
Sheesley Thomas, Mrs Mary Ellen (29 May 1891 Frostburg, Jefferson, Pennsylvania, United States of America - 28 May 1972 bur.Lakelawn Memorial Park and Mausoleum, Reynoldsville, Jefferson, Pennsylvania, United States of America)
│
│ ┌──Eyler, Mr Casper
(Germany - 1840 Beaver, Pennsylvania, United States of America)
│ ┌──Eyler, Mr John D
(7 Sep 1829 Essen, North Rhine-Westphalia, Germany - │ │ 11 Jan 1924 Hamilton, Jefferson, Pennsylvania, United States of America)
└──Eyler Sheesley, Mrs Elizabeth
(21 Jun 1863 Indiana, Pennsylvania, United States of America - 2 Jul 1937 Brush Valley Township, Indiana, Pennsylvania, United States of America)
└──Bartholomew Eyler, Mrs Dorothy
(1 Oct 1830 Germany - 12 Jan 1896 Hamilton, Jefferson, Pennsylvania, United States of America)