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 McCutcheon
(Augusta County, Virginia, USA;1739 - 27 Dec 1785)
┌──James H McCutchan
(1761 Augusta County, Virginia, USA - Abt 30 Dec 1822 Floyd County, Indiana, USA)
│ └──Eleanor Fulton
(Augusta County, Virginia, USA;17 Dec 1740 - 1824) =>
│
┌──Samuel McCutchan
(6 Jan 1795 Bourbon County, Kentucky, USA - 26 Apr 1867 Scottsville, Floyd County, Indiana, USA)
│ └──Elizabeth Hunter
(Abt 1766 Augusta County, Virginia, USA - 1846 Floyd County, Indiana, USA)
│
┌──LaRue McCutchan
(6 Nov 1842 New Albany, Floyd County, Indiana, USA - 18 Jul 1922 Benton County, Arkansas, USA)
│ │
│ │ ┌──Michael Reasor, Sr
(1735 Virginia, USA - 1831 Washington County, Virginia, USA) =>
│ │ ┌──Michael Reasor, Jr
(3 Feb 1760 Winchester, Frederick County, Virginia, USA - │ │ │ 11 Jun 1843 Little Mount, Spencer County, Kentucky, USA)