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: John Curtis PASKETT (16 Dec 1849 Tetbury, Gloucestershire, England - 28 Jun 1917 Henefer, Summit, Utah, USA)
Mother: Sarah Ann THOMAS (9 Aug 1854 Pontypool, Monmouthshire, Wales - 16 Apr 1922 Henefer, Summit, Utah, USA)
Cora Edna PASKETT
(20 Sep 1889 Henefer, Summit, Utah, USA - 27 Apr 1978 Evanston, Uinta, Wyoming, USA)
Ray Thomas CARRUTH (13 Nov 1886 Coalville, Summit, Utah, USA - 18 Aug 1949 Payson, Utah, Utah, USA)
   └─Marion Cora CARRUTH (16 Oct 1928 Coalville, Summit, Utah, USA - 9 Mar 2010 Evanston, Uinta, Wyoming, USA)
    Walter Sterling AANERUD (22 Aug 1924 Ogden, Weber, Utah, USA - 25 Oct 1988 Evanston, Uinta, Wyoming, USA)