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
┌──Thomas Snoddy Myers
(30 May 1818 Jefferson County, Tennessee, USA - 10 Nov 1914 McMinnville, Warren County, Tennessee, USA) =>
┌──Andrew Campbell Myers
(13 Apr 1853 Warren County, Tennessee, USA - 18 May 1932 McMinnville, Warren County, Tennessee, USA)
│ └──Martha Jane Billingsley
(15 Mar 1822 Bledsoe County, Tennessee, USA - 28 Jan 1888 McMinnville, Warren County, Tennessee, USA) =>
│
┌──Leslie Hill Myers
(19 Aug 1886 Warren County, Tennessee, USA - 3 May 1921 McMinnville, Warren County, Tennessee, USA)
│ └──Octa Hill
(7 Mar 1862 Warren County, Tennessee, USA - 11 Dec 1939 Tullahoma, Franklin County, Tennessee, USA)