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":
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┌──William Lafayette Hutcheson
(16 Oct 1831 Warren County, Tennessee, USA - 18 Jul 1925 Springtown, Parker County, Texas, USA) =>
┌──William Newton Hutcheson
(14 Feb 1861 Tennessee, USA - 26 Dec 1913 Parker County, Texas, USA)
│ └──Ruth G Doughty
(27 Jan 1837 Cookeville, Putnam County, Tennessee, USA - 31 Dec 1907 Springtown, Parker County, Texas, USA)
│
┌──Alford Stanley Hutcheson
(21 Mar 1884 Parker County, Texas, USA - 25 Apr 1952 Springtown, Parker County, Texas, USA)
│ └──Matilda Katherine (Tillie) Coker
(19 Mar 1867 Clinton, Anderson County, Tennessee, USA - 27 Jun 1953 Wichita County, Texas, USA)
│
Mildred Ruth Hutcheson (31 Aug 1913 Springtown, Parker County, Texas, USA - 23 Mar 1989 Decatur, Wise County, Texas, USA)
└──Mary Ruth Dillard
(8 Feb 1883 Willow Point, Wise County, Texas, USA - 7 Jun 1965 Weatherford, Parker County, Texas, USA)