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":
Mother: Mary Elizabeth Hood (8 Nov 1862 Butler County, Kentucky, USA - 1 Mar 1937 Indianapolis, Marion County, Indiana, USA)
Thomas Kiar Kuykendall
(21 Dec 1888 Butler County, Kentucky, USA - Jan 1978 Nashville, Davidson County, Tennessee, USA)
Zelda Elizabeth Schultz
(19 Dec 1889 Murray, Calloway County, Kentucky, USA - 27 Dec 1947 Madison, Davidson County, Tennessee, USA)
         ├─Emma Jean Kuykendall
(Abt 1919 Tennessee, USA - ??)
         ├─Norman Schultz Kuykendall
(20 Dec 1921 Butler County, Kentucky, USA - 15 Jul 1993 Old Hickory, Davidson County, Tennessee, USA)
         ├─Paul Clark Kuykendall
(2 May 1928 Bowling Green, Warren County, Kentucky, USA -          │ 11 Mar 2002 bur.Greenacres Memorial Park, Ferndale, Whatcom County, Washington, USA)
         │ + Florence J Nunamaker
(11 Jan 1928 Bellingham, Whatcom County, Washington, USA -          │ 15 Dec 1999 bur.Greenacres Memorial Park, Ferndale, Whatcom County, Washington, USA)
         ├─Clara M Kuykendall
(Abt 1911 Kentucky, USA - ??)
         ├─Thomas Kuykendall, Jr
(Abt 1912 Kentucky, USA - 13 Dec 1924 Warren County, Kentucky, USA)
         ├─Lloyd Kuykendall
(Abt 1915 Kentucky, USA - ??)
         └─Louise Kuykendall
(Abt 1917 Kentucky, USA - ??)