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 Franklin Bacon (13 OCT 1858 Washington County, Tennessee, USA - 15 OCT 1934 McMinn County, Tennessee, USA)
     ┌──Arthur N Bacon(16 MAR 1894 McMinn County, Tennessee, USA -      │ 7 OCT 1918 Aisne, Hauts-de-France, France)
     ┌──Gracie Bacon(24 JUN 1896 McMinn County, Tennessee, USA -      │ 31 DEC 1991 McMinn County, Tennessee, USA)
     │ David Jerome Barham (ABT 1883 Tennessee, USA -      │ 13 AUG 1956 McMinn County, Tennessee, USA)
     ┌──Lula Bacon(JUN 1897 McMinn County, Tennessee, USA -)
     ┌──Robert James Bacon(14 JAN 1900 McMinn County, Tennessee, USA -      │ 31 MAR 1975 McMinn County, Tennessee, USA)
     │ Nora Lee Roderick (25 APR 1905 McMinn County, Tennessee, USA -      │ 22 APR 1974 McMinn County, Tennessee, USA)
     │      ┌──Ralph Nelson Bacon(ABT 1924 McMinn County, Tennessee, USA -      │      │ 1 MAR 1999 McMinn County, Tennessee, USA)
     │      ┌──James E Bacon(ABT 1925 McMinn County, Tennessee, USA -)
     │      ┌──Edward Bacon(ABT 1925 McMinn County, Tennessee, USA -)
     │      ┌──Lee Ida Bacon(13 JAN 1930 Riceville, McMinn County, Tennessee, USA -      │      │ 2 FEB 2016 Louisville, Jefferson County, Kentucky, USA)
     │      │ + M.F. Hall
     │      ┌──Agnes Cathaleen Bacon(27 NOV 1932 McMinn County, Tennessee, USA -      │      │ 9 MAR 1948 Athens, McMinn County, Tennessee, USA)
     ┌──Ollie Bacon(ABT 1903 McMinn County, Tennessee, USA -)
     ┌──Viola Bacon(16 DEC 1903 McMinn County, Tennessee, USA -      │ 1 APR 1997 Elizabethton, Carter County, Tennessee, USA)
     │ Jacob Lee Lingerfelt (20 DEC 1898 McMinn County, Tennessee, USA -      │ APR 1968 Elizabethton, Carter County, Tennessee, USA)
     │      └──at least 2 children(Tennessee, USA - unknown)
     ┌──Hubert Bacon(13 DEC 1906 McMinn County, Tennessee, USA -      │ AUG 1985 Chattanooga, Hamilton County, Tennessee, USA)
     │ Gladys L Thomas (28 JUL 1913 Tennessee, USA -      │ 6 AUG 2006 Dayton, Rhea County, Tennessee, USA)
     │      ┌──Billie Wayne Bacon(ABT 1932 Chattanooga, Hamilton County, Tennessee, USA -      │      │ 1 JAN 1933 Washington County, Tennessee, USA)