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":
Anna Lee Thatcher
(14 Mar 1880 Soddy, Hamilton County, Tennessee, USA - 8 Sep 1952 Chattanooga, Hamilton County, Tennessee, USA)
Samuel Gamble Hutcheson
(1 Mar 1878 Tennessee, USA - 10 Nov 1938 Coulterville, Hamilton County, Tennessee, USA)
         ├─Edna May Hutcheson
(25 May 1901 Centerville, Hamilton County, Tennessee, USA - 15 Jan 1997 Soddy Daisy, Hamilton County, Tennessee, USA)
         │ Chester Ernest Camp
(5 Dec 1900 Hamilton County, Tennessee, USA - 7 Jul 1921 Coulterville, Hamilton County, Tennessee, USA)
         │ :         └─Harold A Camp
(Soddy, Hamilton County, Tennessee, USA;24 Aug 1921 - 17 Oct 1995)
         │ + Ralph Graham Davis
(23 Nov 1895 Soddy, Hamilton County, Tennessee, USA -          │ 18 Jan 1975 bur.Soddy-Daisy, Hamilton County, Tennessee, USA)
         ├─Margaret Adelia Hutcheson
(16 Aug 1903 Centerville, Hamilton County, Tennessee, USA - Apr 1981 Chattanooga, Hamilton County, Tennessee, USA)
         │ + William Marshall Hood
(Abt 1901 Tennessee, USA - ??)
         ├─Bruce Leland Hutcheson
(15 Nov 1905 Coulterville, Hamilton County, Tennessee, USA - Nov 1976 Hamilton County, Tennessee, USA)
         │ Thelma Izora Van Every
(6 Apr 1907 Fort Wayne, Allen County, Indiana, USA - 2 Apr 1999 Danville, Danville County, Virginia, USA)
         ├─Elba Louise Hutcheson
(15 Nov 1907 Coulterville, Hamilton County, Tennessee, USA -          │ 9 Nov 1981 bur.Chattanooga, Hamilton County, Tennessee, USA)
         │ + Arnold Whitten Bowman
(19 Jun 1907 Chattanooga, Hamilton County, Tennessee, USA -          │ 25 Jan 1996 bur.Chattanooga, Hamilton County, Tennessee, USA)
         ├─Rena Lynn Hutcheson
(Coulterville, Hamilton County, Tennessee, USA;14 Jul 1910 - 21 Nov 1921)
         ├─Charles Pat Hutcheson
(4 Jul 1913 Centerville, Hamilton County, Tennessee, USA - 2 Jun 1982 Nashville, Davidson County, Tennessee, USA)
         ├─Virginia C Hutcheson
(Abt 1917 Hamilton County, Tennessee, USA - ??)
         └─Harold Albert Hutcheson
(24 Aug 1921 Sale Creek, Hamilton County, Tennessee, USA - 17 Oct 1995 Soddy Daisy, Hamilton County, Tennessee, USA)