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":
Warning: include(mods/chart_types_help_v13.0.0.1/languages/English_/homepages/12/d484092304/htdocs/www/family/ancestortext.php): Failed to open stream: No such file or directory in /homepages/12/d484092304/htdocs/www/family/rrcharttypes_inc.php on line 17
Warning: include(): Failed opening 'mods/chart_types_help_v13.0.0.1/languages/English_/homepages/12/d484092304/htdocs/www/family/ancestortext.php' for inclusion (include_path='.:/usr/lib/php8.1') in /homepages/12/d484092304/htdocs/www/family/rrcharttypes_inc.php on line 17
┌──Samuel Edwin James
(26 Dec 1935 Newlin, Hall County, Texas, USA - 17 Jan 2007 Waldron, Scott County, Arkansas, USA)
│ │ ┌──Isaac Washington Richmond
(2 Dec 1838 Cleveland, Bradley County, Tennessee, USA - │ │ │ 19 Jul 1920 Mount Pleasant, Scott County, Arkansas, USA) =>
│ │ ┌──Thomas Gilbert Richmond
(6 Apr 1870 Cleveland, Bradley County, Tennessee, USA - │ │ │ 3 Oct 1935 Cardiff, Scott County, Arkansas, USA)
│ │ │ └──Martha Lou Amy Putnam
(4 Aug 1839 Arbacoochee Gold Mines, Cleburne County, Alabama, USA - │ │ │ 18 Jan 1916 Waldron, Scott County, Arkansas, USA) =>
│ │ │
│ │ ┌──Burl Richmond
(26 Sep 1914 Cardiff, Scott County, Arkansas, USA - 15 Apr 1990 Waldron, Scott County, Arkansas, USA)