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":
Mary Ella Thompson
(31 Jul 1897 Texas, USA - 22 Dec 1996 Meadow, Terry County, Texas, USA)
William Madison Turnbough
(6 Oct 1896 Quanah, Hardeman County, Texas, USA - 3 Feb 1972 Lubbock, Lubbock County, Texas, USA)
         ├─Roy Neil Turnbough
(1919 Hardeman County, Texas, USA - 25 Dec 1938 Lubbock, Lubbock County, Texas, USA)
         ├─Elgin Wade Turnbough
(21 Dec 1922 Quanah, Hardeman County, Texas, USA - ??)
         │ Lou Nell Finley
(24 Dec 1925 Lubbock, Lubbock County, Texas, USA - Mar 1987 Meadow, Terry County, Texas, USA)
         │          └─Clint Madison Turnbough
(Tulsa, Tulsa County, Oklahoma, USA;2 Mar 1958 - 22 Nov 1982)
         ├─William Madison Turnbough, Jr
(Quanah, Hardeman County, Texas, USA;29 Dec 1924 - 27 Mar 1926)
         ├─Richard Vanoy (Rip) Turnbough
(7 Feb 1921 Quanah, Hardeman County, Texas, USA - 7 Nov 2001 Balmorhea, Reeves County, Texas, USA)
         │           + Living
         ├─Eva Ruth Turnbough
(20 Jun 1927 North Groesbeck, Hardeman County, Texas, USA - 4 Apr 1962 Abilene, Taylor County, Texas, USA)
         │ Living
         │ Sadie 'LaNelle' Crownover
(6 May 1931 Brownfield, Terry County, Texas, USA - 12 Jun 1984 Englewood, Arapahoe County, Colorado, USA)
         │ :          Curtis Lynn Jones
(23 Mar 1955 Plainview, Hale County, Texas, USA - 28 Oct 2000 Beaverton, Washington County, Oregon, USA)