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 TIMMS (8 Jul 1856 Answorth, Birmingham, England - 1 Dec 1938 Midland Junction, Western Australia, Australia)
Mother: Louisa HENSON (14 Jul 1856 Emerald Hill, Victoria, Australia - 27 Jan 1927 Midland Junction, Western Australia, Australia)
Ada May TIMMS
(29 May 1887 Box Hill, Victoria, Australia - 22 Oct 1959 Midland, Western Australia, Australia)
Arthur Sydney MEDCRAFT (18 Mar 1884 St Leonards, New South Wales, Australia - : 2 Apr 1914 Perth, Western Australia, Australia)(m. 1909 Swan, Western Australia, Australia)
:   ├─Donald Milton MEDCRAFT (Perth, Western Australia, Australia;1912 - 10 May 1912)
:   └─Lester Sydney MEDCRAFT (1912 Perth, Western Australia, Australia - :    19 May 1912 Swan, Western Australia, Australia)
John A FARRELL (Abt 1885 - DECEASED)(m. 1916 Swan, Western Australia, Australia)
   └─Elva Lorris FARRELL (1917 Swan, Western Australia, Australia - Abt 1965)