BITY Mold Supply. "What is BITY", you ask? BITY stands for "Brick in the yard". Brick In The Yard is a name that harkens back to 1995. A brilliant flash of light, a night in the burn intensive care unit, reconstructive hand surgery, and the "Brick In The Yard" name was born. Space is limited here so go to our web page to get the full "Brick in the yard" story.