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":
Elizabeth Parker
(1720 Leyland, South Ribble Borough, Lancashire, England - 1816 Stafford County, Virginia, USA)
William B Mathena
(1720 Hope Plantation, Stafford County, Virginia, USA - Abt 1800 Virginia, USA)
         ├─Moses Matheny
(1745 Hope Plantation, Stafford County, Virginia, USA - ??)
         ├─Ephraim Matheny
(1764 Virginia, USA - Aft 1850)
         ├─John Matheny
(1756 Hope Plantation, Stafford County, Virginia, USA - ??)
         ├─Fredrick Matheny
(1760 Hope Plantation, Stafford County, Virginia, USA - ??)
         ├─Nathaniel Matheny
(1754 Hope Plantation, Stafford County, Virginia, USA - 1846 Monongalia County, West Virginia, USA)
         └─James Matheny
(18 Mar 1753 Hope Plantation, Stafford County, Virginia, USA - 10 Apr 1832 Preston County, West Virginia, USA)
          + Mary Lamayne
(Est 1753 - ??)