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":
Quinn Berry, H.
Berry, Mr Charles Daniel
(1848 West Virginia, United States of America - 2 May 1916 Frostburg, Allegany, Maryland, United States of America)
         ├─Berry, Mr William Henry
(1880 - 1955 bur.Lonaconing, Allegany, Maryland, United States of America)
         │ DeVault Berry, Mrs Mary Ellen
(1872 - 1959 bur.Lonaconing, Allegany, Maryland, United States of America)
         │          └─Berry Wagner, Mrs Genevieve Loretta
(23 Sep 1904 Lonaconing, Allegany, Maryland, United States of America -          │           18 Feb 1999 Garrett County Memorial Hospital, Oakland, Allegany, Maryland, United States of America)
         │           Wagner, Mr Albert D
(14 Jul 1895 - 31 Oct 1987 Cumberland, Allegany, Maryland, United States of America)
         │                    └─Wagner, Mr George William
(27 Jul 1923 - 18 Jun 2007 Westernport, Allegany, Maryland, United States of America)
         │                     Sheesley Wagner, Mrs Mildred Elizabeth
(29 Jul 1925 -          │                     24 Oct 1984 bur.Flintstone, Allegany, Maryland, United States of America)
         └─Berry, Mr Edward Jackson
(5 Mar 1882 Allegany, Maryland, United States of America -           4 Aug 1946 Morgantown, Monongalia, West Virginia, United States of America)
          Chenoweth Berry, Mrs Verna L
(18 Aug 1880 Garrett, Maryland, United States of America -           21 Jun 1957 Morgantown, Monongalia, West Virginia, United States of America)
                   ├─Berry, Ms Edith L
(1902 West Virginia, United States of America -                    │ 1980 Morgantown, Monongalia, West Virginia, United States of America)
                   ├─Berry, Mr Walter Chenowith
(Morgantown, Monongalia, West Virginia, United States of America;6 Jul 1904 - 3 Jul 1950)
                   ├─Berry McDonald, Mrs Inez Lorraine
(31 May 1910 Bayard, Grand, West Virginia, United States of America -                    │ 23 Jan 1993 Morgantown, Monongalia, West Virginia, United States of America)
                   └─Berry Fisher, Mrs Verna Josephine
(14 Mar 1918 Morgantown, Monongalia, West Virginia, United States of America -                     7 Mar 2012 Dakota, Minnesota, United States of America)