how to creat a edge within a square?

let…
http://img66.imageshack.us/img66/7011/13bx2.th.jpg

become this
http://img66.imageshack.us/img66/5053/26xb.th.jpg

thanks

Ctrl-R

Heres two ways of doing it

  1. select the top and bottom edge, press w > subdivide

  2. press k and use loopcut or knife

ok… thanks, i got it

Strange you were able to post a finished model in the gallery while still struggling with the basics here…