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":
Pearl Ann Thompson
(5 Apr 1885 Putnam County, Tennessee, USA - 1 Feb 1974 Detroit, Wayne County, Michigan, USA)
James Lee Kuykendall
(Jun 1871 Putnam County, Tennessee, USA - ?? Detroit, Wayne County, Michigan, USA)
         ├─Mary Lee Kuykendall
(1910 Cookeville, Putnam County, Tennessee, USA - ??)
         │ + Fred M Ritter
(Abt 1904 Illinois, USA - ??)
         ├─Lena Pearl Kuykendall
(19 Jun 1906 Tennessee, USA - 6 Nov 1996 Grand Rapids, Kent County, Michigan, USA)
         ├─Parizetta Addieville Kuykendall
(14 Feb 1903 Cookeville, Putnam County, Tennessee, USA -          │ 25 Sep 1987 Clinton Twp, Macomb County, Michigan, USA)
         │ + William Hinson Putty
(8 Feb 1899 Cookeville, Putnam County, Tennessee, USA - 19 Sep 1952 Lansing Twp, Ingham County, Michigan, USA)
         ├─Harvey Kuykendall
(22 May 1904 Cookeville, Putnam County, Tennessee, USA - 22 Nov 1995 Fort Wayne, Allen County, Indiana, USA)
         │ Janette Linn
(13 May 1915 Michigan, USA - 18 Feb 1983 Auburn, DeKalb County, Indiana, USA)
         │          ├─Stephen Charles Kuykendall
(20 Sep 1953 Indiana, USA - 10 Apr 1968 Auburn, DeKalb County, Indiana, USA)
         │          └─Susan Elaine Kuykendall
(16 Jun 1958 Indiana, USA - 10 Apr 1968 Auburn, DeKalb County, Indiana, USA)
         └─Janie Louise Kuykendall
(13 Jun 1923 Cookeville, Putnam County, Tennessee, USA - 30 Jul 2004 Grandville, Kent County, Michigan, USA)
          + Ralph Ritchey
(31 Dec 1921 Daylight, Warren County, Tennessee, USA - 15 Apr 1995 Grand Rapids, Kent County, Michigan, USA)