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":
Frances L Hill
(12 Oct 1871 Texas, USA - 31 Jan 1947 Waco, McLennan County, Texas, USA)
Anderson W Truehitt
(9 Jun 1864 Kansas, USA - 16 Jun 1929 McLennan County, Texas, USA)
         ├─Opal Fay Truehitt
(7 Feb 1909 Texas, USA - 21 Feb 1986 Waco, McLennan County, Texas, USA)
         │ + Lucian Eggebrecht
(2 Feb 1906 Falls County, Texas, USA - 13 Apr 1965 Waco, McLennan County, Texas, USA)
         ├─William E Truehitt
(Nov 1889 Pilot Point, Denton County, Texas, USA - 16 Sep 1955 Marlin, Falls County, Texas, USA)
         ├─Myrtle W Truehitt
(21 May 1891 Texas, USA - 24 Nov 1938 Waco, McLennan County, Texas, USA)
         │ + George Meeks Payne
(26 Apr 1885 Texas, USA - 12 Dec 1955 Waco, McLennan County, Texas, USA)
         ├─John Jesse Truehitt
(27 Feb 1894 Aubrey, Denton County, Texas, USA - 28 Jun 1947 Austin, Travis County, Texas, USA)
         │ Elvira Frances Berry
(4 Jan 1894 Texas, USA - 6 Mar 1961 Waco, McLennan County, Texas, USA)
         │ :         ├─Alta Pearl Truehitt
(23 Dec 1915 Pilot Point, Denton County, Texas, USA - 23 Mar 1971 Waco, McLennan County, Texas, USA)
         │ :         ├─Willie Aline Truehitt
(14 Aug 1917 Denton County, Texas, USA - 16 Feb 1977 Waco, McLennan County, Texas, USA)
         │ :         │ + Bence James Castilow
(15 Jan 1924 Oletha, Limestone County, Texas, USA - 19 May 2013 Waco, McLennan County, Texas, USA)
         │ :         ├─Vica Kathryn Truehitt
(30 Sep 1921 Brenham, Washington County, Texas, USA - 3 Nov 1998 Waco, McLennan County, Texas, USA)
         │ :         │ + J B Nolte
(Abt 1917 - ??)
         │ :         │ + James Howard Collins
(4 May 1922 Waco, McLennan County, Texas, USA -          │ :         │ 15 May 1980 Austin, Travis County, Texas, USA)
         │ :         ├─Bertha Aletha Truehitt
(15 Feb 1925 Waco, McLennan County, Texas, USA - Feb 1992)
         │ :         │ + Living
         │ :         │ + Belton Attaway
(28 Jan 1921 - 7 Nov 1990 McLennan County, Texas, USA)
         │ :         ├─Ira Melborne Truehitt
(30 Mar 1930 Waco, McLennan County, Texas, USA - 18 Mar 1992 Arkansas, USA)
         │ Mary Ann McLean
(12 Sep 1904 Texas, USA - 12 Jan 1998 Pomona, Los Angeles County, California, USA)
         │          ├─Martha Ann Truehitt
(Austin, Travis County, Texas, USA;28 Jul 1941 - 4 Aug 1941)
         ├─Archie Truehitt
(26 May 1899 Texas, USA - 26 Jul 1974 Waco, McLennan County, Texas, USA)
         │ Vicy Alice Pierce
(27 Feb 1900 Texas, USA - 6 Mar 1982 Waco, McLennan County, Texas, USA)
         │          └─Bessie Ruth Truehitt
(Waco, McLennan County, Texas, USA;23 Sep 1934 - 25 Mar 2001)
         │           + Dewey Eugene McWhirter
(McLennan County, Texas, USA;26 Dec 1929 - 30 Jun 1984)
         ├─Essie Louvina Truehitt
(9 Jul 1901 Denton, Denton County, Texas, USA - 16 Sep 1956 Waco, McLennan County, Texas, USA)
         │ + John Adolph Becker
(3 Oct 1892 Fayette County, Texas, USA - 9 Oct 1972 Waco, McLennan County, Texas, USA)
         └─Bertha Adline Truehitt
(11 Sep 1904 Texas, USA - 31 Mar 1929 Waco, McLennan County, Texas, USA)
          + Living