Actually, on a similar subject, the Wiki currently has a calculation for kicking a locked door open in the References for Common Feats page which is being used for several characters and verses, and outside of specific circumstances that calculation would not apply to kicking a door in, as it is a calculation for snapping an average deadbolt. Many doors don't have a proper deadbolt to begin with which is why they can be unlocked with a credit card or a soda bottle, and even if they do have, it usually isn't the deadbolt that gives way, it's the door jamb. Typically that consists of forcing the latch through a couple millimetres of wood and breaking out three or four half-inch screws from the wooden frame. It's almost laughably easy to kick in most doors.
