No, you guys. Your beards should be fist length.
It shouldn't be longer than that, nor is it allowed to trim it if it's shorter or the size of your fist.
Also, you must TRIM your mustaches, not SHAVE. There's a bit of confusion about that, and lots of people just shave their mustache altogether, but no, you're supposed to trim it.
There is the hadith that says:
Rasulullah (Sallallahu Alayhi Wasallam) says: "Trim closely the moustache, and let the beard flow (Grow)." Narrated Ibn Umar (R.A.) in Muslim, Hadith no. 498
Also, Hadhrat Abdullah Ibn Umar (R.A.) used to cut that portion (which exceeds the grip of the hand) of the beard.
- Tirmidhi