For the aft-facing staterooms, Escape, Joy, Bliss, and Encore have the same balcony sizes, depths, and configurations. Those vary in depth and in width depending on location (deck, bed location, etc.).
Your stateroom balcony (13338) is the same depth as the standard balconies in your area. There are some angled balconies that are about 50% larger (deeper on one side than the other) such as 13340 but your balcony is about the same as the majority of balconies on the ship.