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 Arbuckle
(3 Mar 1752 Balcony Falls, Rockbridge County, Virginia, USA - 21 Mar 1836 Mason County, West Virginia, USA)
│ │ └──Margaret Thompson
(1 Jan 1714 Scotland - 1761 Augusta County, Virginia, 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)
│
│ ┌──John Madison, Jr.
(1640 St Stephen's Parish, King & Queen County, Virginia, USA - │ │ 1705 King & Queen County, Virginia, USA) =>
│ ┌──Thomas Madison
(Abt 1693 Hanover County, Virginia, USA - 20 Jan 1754 Caroline County, Virginia, USA)
│ │ └──Isabella Minor (Todd)
(1663 Toddsbury, Gloucester County, Virginia, USA - │ │ 1706 St Stephen's Parish, King & Queen County, Virginia, USA)
│ │
│ ┌──Humphrey Madison
(25 Apr 1730 King & Queen County, Virginia, USA - 12 Sep 1756 Jackson River, Bath County, Virginia, USA)
└──Catherine Madison
(1754 Augusta County, Virginia, USA - 18 Jul 1818 Buffalo, Putnam County, West Virginia, USA)
│
│ ┌──Hezekiah Dickinson
(28 Feb 1645/46 Wethersfield, Hartford County, Connecticut, USA - │ │ 14 Jun 1707 Springfield, Hampden County, Massachusetts, USA) =>
│ ┌──Adam Dickinson
(5 Feb 1701/02 Springfield, Hampden County, Massachusetts, USA - 1762 Augusta County, Virginia, USA)
│ │ └──Abigail Blakeman
(11 Nov 1663 Stratford, Fairfield County, Connecticut, USA - │ │ 30 Mar 1719 Springfield, Hampden County, Massachusetts, USA) =>
│ │
└──Mary Dickinson
(Augusta County, Virginia, USA;1725 - Aft 1797)
└──Catherine Stephenson
( - Feb 1790 Cowpasture Region, Alleghany County, Virginia, USA)