Junction box and wall stud question

[Sparky]

They make a fan rated j box that will straddle the stud. I can't link to it from home depot right now but I bet you can find it. Remember those pancake boxes are only rated for 3 wires so no in and outs.

[Sparky]

Something like this

http://www.homedepot.com/p/Titan3-12...M-SM/205383211