Here's a good solution to this, and will work with any shortcut icon you may use to start Terminal.
- Open Terminal.
- Type :
gksudo gedit /usr/share/vte/termcap/xterm
- Enter your password (root password) if necessary.
- Find something like that (yours must be different, just look around line 10):
:co#80:it#8:li#24:\
- Change the first and last number, for example to set the default size to 200 columns x 50 lines:
:co#200:it#8:li#50:\
- Save.
- Close every Terminal.
- Open a new Terminal, Enjoy!













