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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┌──John Griffith Nelson
(2 Apr 1776 Mason County, West Virginia, USA - 23 Sep 1817 Pendleton, Madison County, Indiana, USA) =>
┌──William 'Arbuckle' Nelson
(13 Sep 1807 Mason County, West Virginia, USA - 4 Aug 1876 Cambria, Wayne County, Iowa, USA)
│ └──Mary (Polly) Dickinson Arbuckle
(4 Apr 1784 Fort Randolph, Point Pleasant, Mason County, West Virginia, USA - │ 13 Sep 1847 Pendleton, Madison County, Indiana, USA) =>
│
┌──Clark Greenlee Nelson
(15 May 1838 Madison County, Indiana, USA - 6 Oct 1895 Iowa City, Johnson County, Iowa, USA)
│ │
│ │ ┌──Morris Greenlee
(8 Aug 1790 Botetourt County, Virginia, USA - 20 Mar 1864 Wayne County, Iowa, USA) =>
│ └──Nancy Jane (Jenny) Greenlee
(20 Aug 1815 Mason County, West Virginia, USA - 2 Jul 1890 Shawnee, Pottawatomie County, Oklahoma, USA)
│ └──Nancy Kimberling
(28 Jan 1791 Virginia, USA - 14 Jun 1868 Wayne County, Iowa, USA) =>
│
Nettie Nelson (Apr 1872 Corydon, Wayne County, Iowa, USA - 1906 Wayne County, Iowa, USA)
└──Ella Amelia Taylor
(18 Jan 1844 Lee County, Iowa, USA - 19 Jul 1914 Burden, Cowley County, Kansas, USA)