I am new to this forum. Could anyone tell me if there is a code other than the 1-1/4" depth for drilling holes in floor joist. I did this lighting for some one in a new addition. The person I did the work for was told by a electrician friend that you can not drill down the center of the beams.I have never hear of this before,neither have any of my fellow coworkers. Any input on this would be helpful. Thanks