Second-Class Cabins
There was quite a big dive in standard from the first-class to the second-class cabins. These cabins had a simple seating area, a private bedroom, and bunk beds. These rooms were far less luxurious than first-class but still quite enjoyable.
Third-Class Cabins
The best way that you could have described the third-class cabins was absolutely awful. In fact, that may be an understatement. These were as basic as you could get and seem to have the same characteristics as a prison cell. Space was limited, so you mainly saw the third-class passengers roaming the areas of the Titanic that they were permitted.