How to change the window-size of the mate-terminal

This method is probably not the right one.

change window size

select File -> New Profile
select General tab(default)
check "Use custom default terminal size"
change to the window size you preferred

confirm

$ gsettings get org.mate.terminal.global profile-list
['default', 'profile0']

change default value

$ gsettings set org.mate.terminal.global profile-list [\'profile0\']

Yeah