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":
Lula Morris
(1 May 1887 Texas, USA - 3 Jun 1981 Corpus Christi, Nueces County, Texas, USA)
Wiley Robison Kuykendall
(12 Mar 1885 Van Zandt County, Texas, USA - 5 Mar 1968 Henderson, Rusk County, Texas, USA)
         ├─Odell J Kuykendall
(Abt 1906 Van Zandt County, Texas, USA - ??)
         ├─Berlin Hobart Kuykendall
(3 Oct 1910 Van Zandt County, Texas, USA - 17 Sep 1984 Corpus Christi, Nueces County, Texas, USA)
         │ + Evelyn S ??
(Abt 1912 Texas, USA - ??)
         ├─Fern Daphnee Kuykendall
(18 Dec 1912 Van Zandt County, Texas, USA - 24 Mar 1993 Corpus Christi, Nueces County, Texas, USA)
         │ + Lee Roy McGalliard
(12 Oct 1906 Baxter County, Arkansas, USA - 3 Aug 1984 Corpus Christi, Nueces County, Texas, USA)
         └─Ila M Kuykendall
(3 Dec 1906 Van Zandt County, Texas, USA - 30 May 1999 Henderson, Rusk County, Texas, USA)
          + Sam H Reaves
(28 Aug 1903 Van Zandt County, Texas, USA - 4 Dec 1996 Tyler, Smith County, Texas, USA)