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":
Father: Levi Truitt (11 Feb 1851 North Carolina, USA - 11 Sep 1913 Roanoke, Roanoke County, Virginia, USA)
Virgil Truitt
(18 Aug 1888 North Carolina, USA - 14 Feb 1939 Reidsville, Rockingham County, North Carolina, USA)
Clara Williams
(1892 North Carolina, USA - 1966 Reidsville, Rockingham County, North Carolina, USA)
         ├─Infant Son Truitt
(Rockingham County, North Carolina, USA;24 Aug 1915 - 24 Aug 1915)
         ├─Clarence Truitt
(1919 - 1920 bur.Rockingham County, North Carolina, USA)
         ├─Clay Truitt
(1919 - 1920 bur.Rockingham County, North Carolina, USA)
         ├─Oglesby E Truitt
(12 Jan 1912 North Carolina, USA - 15 Feb 1933 Reidsville, Rockingham County, North Carolina, USA)
         ├─Silas Franklin Truitt
(Reidsville, Rockingham County, North Carolina, USA;12 Feb 1913 - 29 Dec 1993)
         │ + Luda Agnes Comer
(29 Jun 1917 Rockingham County, North Carolina, USA - ??)
         ├─Mary Lena Truitt
(13 Jul 1916 Reidsville, Rockingham County, North Carolina, USA - 7 Feb 1995 Morganton, Burke County, North Carolina, USA)
         │ + Joseph Daniel Fitz
(16 Dec 1915 Price County, North Carolina, USA - 29 May 1995 Morganton, Burke County, North Carolina, USA)
         ├─Virgil Truitt, Jr
(13 Aug 1918 Reidsville, Rockingham County, North Carolina, USA -          │ 30 Mar 1993 Tarboro, Edgecombe County, North Carolina, USA)
         │ + Vivian Reid Kreeger
(19 Nov 1917 Forsyth County, North Carolina, USA - 7 Mar 2002 Tarboro, Edgecombe County, North Carolina, USA)
         └─Roy Alvis Truitt
(20 Jan 1921 Reidsville, Rockingham County, North Carolina, USA - 16 May 1996 Tarboro, Edgecombe County, North Carolina, USA)
          + Virginia Womack
(14 Jan 1918 - 15 Aug 1995 Smithfield, Johnston County, North Carolina, USA)