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: Rev. James Mark INNES
(8 Nov 1826 Lasswade, Midlothian, Scotland - 3 Oct 1886 Bacchus Marsh, Victoria, Australia)
Mother: Alison HUME
(4 Oct 1832 Lasswade, Midlothian, Scotland - 25 Aug 1888 Bega, New South Wales, Australia)
Adam Downie INNES
(1862 Western Australia, Australia - 1945 Sydney, New South Wales, Australia)
Mary Amelia HARDY
(1863 Broulee, New South Wales, Australia - 1939 Chatswood, New South Wales, Australia)
         └─Allen George INNES
(1891 Cobargo, New South Wales, Australia - 1974 Sydney, New South Wales, Australia)