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: William Henry JEFFERY
(19 Mar 1855 Perth, Western Australia, Australia - 31 Jul 1922 Belmont, Western Australia, Australia)
Mother: Mary Ann MCPEAKE
(1855 Londonderry, Ireland - 24 Feb 1932 Perth, Western Australia, Australia)
Patrick JEFFERY
(1890 Canning, Western Australia, Australia - 1 Aug 1949 Carlisle, Western Australia, Australia)
Pauline SIMMONDS
(Apr 1896 Bethnal Green, Middlesex, England - 12 Mar 1933 Rivervale, Western Australia, Australia)
         └─Alex Frank JEFFERY
(Perth, Western Australia, Australia;18 Jul 1925 - 11 Jun 1999)
          + Muriel Dawn MARCHANT
(Perth, Western Australia, Australia;2 Aug 1927 - 23 Nov 2004)