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":
Hugh House
(19 Dec 1897 Clay County, Kentucky, USA - 18 Nov 1976 Erick, Beckham County, Oklahoma, USA)
Lillian Mae (Lilly) Richmond
(12 Aug 1900 Cardiff, Scott County, Arkansas, USA - 4 Jun 1975 Erick, Beckham County, Oklahoma, USA)
         ├─Eulane Susie Tanner
(14 Mar 1918 Oklahoma, USA - 3 Oct 1986 Alexandria, Alexandria County, Virginia, USA)
         │ James Luke Tanner
(8 Dec 1917 Wichita Falls, Wichita County, Texas, USA - 22 Sep 1998 Alexandria, Alexandria County, Virginia, USA)
         │           + Living
         ├─Madeline House
(8 Apr 1920 Waldron, Scott County, Arkansas, USA - 29 Dec 1993 Lubbock, Lubbock County, Texas, USA)
         │ Herman Horace Hendrix
(20 Nov 1918 Beckham County, Oklahoma, USA - 1 Mar 1991 Lubbock, Lubbock County, Texas, USA)
         ├─Treva Lee House
(11 Apr 1922 Waldron, Scott County, Arkansas, USA - 29 Apr 2012 Peoria, Maricopa County, Arizona, USA)
         │ + David Bert Henderson
(25 Sep 1920 Wewoka, Seminole County, Oklahoma, USA - 14 Aug 2006 Walnut Creek, Contra Costa County, California, USA)
         └─Hugh Eva House
(11 Aug 1925 Waldron, Scott County, Arkansas, USA - 16 Nov 1994 San Jose, Santa Clara County, California, USA)
          + Bob Lake
(Est 1920 - ??)
          + Living