A lock is a device used to lock hinges and the like. A lock may be crafted with different qualities, this may include stronger metals and more pins.
Poor quality - usually found within already locked areas, chests inside a resident may be fitted with a lock like this. These locks usually have anywhere from 1-3 pins. It has a DC 12 when someone attempts to break one open.
Price: 5 Gp
Good quality - usually found at most residential homes, these usually have a minimum of 4 pins. It has a DC 14 when someone attempts to break one open.
Price: 15 Gp
Great quality - usually found at residents of lesser lords and nobles, these usually have a minimum of 6 pins. It has a DC 16 when someone attempts to break one open.
Price: 30 Gp
Supreme quality - usually found at temples, catacombs, castle/keep doors or noble households, these usually have a minimum of 8 pins. It has a DC 16 when someone attempts to break one open.
Price: 50 Gp