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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┌──Ridley Draper
(30 Dec 1825 - 10 Jun 1873 Putnam County, Tennessee, USA)
┌──William Matthew Draper
(9 Jan 1865 Putnam County, Tennessee, USA - 2 Mar 1944 Gainesboro, Jackson County, Tennessee, USA)
│ │ ┌──Petrus (Peter) Kuykendall
(28 Jan 1719 Machackemeck (Deerpark), Orange County, New York, USA - │ │ │ 17 Feb 1783 Washington County, Tennessee, USA) =>
│ │ ┌──Jesse Young Kuykendall
(1760 North Carolina, USA - 1834 Jackson County, Tennessee, USA)
│ │ │ └──Mary Hampton
(1725 Hampshire County, West Virginia, USA - Abt 1760 Washington County, North Carolina, USA)
│ │ │
│ │ ┌──Matthew Kuykendall
(May 1803 North Carolina, USA - 1868 Putnam County, Tennessee, USA)
│ │ │ └──Jean Hall
(1756 North Carolina, USA - Jun 1852 Texas, USA)
│ │ │
│ └──Rebecca Kuykendall
(13 Jan 1828 Jackson County, Tennessee, USA - 19 May 1905 Putnam County, Tennessee, USA)
│ │
│ │ ┌──James Terry
(1768 Granville County, North Carolina, USA - 1828 Jackson County, Tennessee, USA)
│ └──Henrietta (Rita) Terry
(1805 Granville County, North Carolina, USA - 1865 Putnam County, Tennessee, USA)
│ └──Mary Gooch
(1774 Granville County, North Carolina, USA - 1832 Putnam County, Tennessee, USA)