Text Mode provides control of various text screen settings:
In addition, resident programs are provided to make your font and color settings permanent.
Windowed Text Mode can set columns (2 to 132, even) and rows (1 to 128) for windowed DOS-boxes.
Text Mode May 2003 (62k, includes source). Have a look at the history.
(NT/2K/XP users can use Console Size.)
Another program you might want to look at is FONTMAN+PALMAN which has a font and palette editor, and sample fonts.
12 May, 2003.