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":
Father: John Henry Richmond (16 JUN 1860 Bradley County, Tennessee, USA - 19 APR 1932 Lenoir City, Loudon County, Tennessee, USA)
Mother: Harriett Elizabeth (Lizzy) McCroskey (16 AUG 1866 Bradley County, Tennessee, USA - 25 MAR 1923 Lenoir City, Loudon County, Tennessee, USA)
Mary Harriet Richmond
(16 JUN 1896 Charleston, Bradley County, Tennessee, USA - 6 FEB 1981 Knoxville, Knox County, Tennessee, USA)
James Thomas Ford (27 FEB 1890 Lenoir City, Loudon County, Tennessee, USA - : 11 JUL 1968 Randleman, Randolph County, North Carolina, USA)
:     └──Clyde Newman Ford(21 MAR 1915 Lenoir City, Loudon County, Tennessee, USA - :      23 AUG 1997 Brevard County, Florida, USA)
:      + Edna Mae (Tincy) Peters (26 FEB 1917 Lenoir City, Loudon County, Tennessee, USA - :      30 NOV 2001 Cocoa Beach, Brevard County, Florida, USA)
George Henry Fritts (29 JUN 1890 Lenoir City, Loudon County, Tennessee, USA - 12 JUN 1976 Lenoir City, Loudon County, Tennessee, USA)
     ┌──George Henry Fritts, Jr(30 DEC 1919 Lenoir City, Loudon County, Tennessee, USA -      │ 7 FEB 1987 Chatham County, Georgia, USA)
     ┌──Helen Jane Fritts(6 JUN 1921 Lenoir City, Loudon County, Tennessee, USA -      │ 28 NOV 1998 Lenoir City, Loudon County, Tennessee, USA)
     │ + George Dutton (- unknown)
     ┌──Mildred Ruth Fritts(25 SEP 1923 Lenoir City, Loudon County, Tennessee, USA -      │ 11 MAR 2005)
     ┌──Elaine Fritts(2 APR 1926 Lenoir City, Loudon County, Tennessee, USA -      │ 28 JUN 1946 Lenoir City, Loudon County, Tennessee, USA)
     ┌──Bettie June Fritts(5 JUL 1928 Lenoir City, Loudon County, Tennessee, USA -      │ 9 OCT 2003)
     ┌──Virginia Rose Fritts(23 NOV 1929 Lenoir City, Loudon County, Tennessee, USA -      │ 6 SEP 1994 Emporia, Emporia County, Virginia, USA)
     │ + Robert Kenneth Black (30 SEP 1935 Manchester, Carroll County, Maryland, USA -      │ 15 MAR 1990)