Common and Proper Nouns. A common noun names a general person, place. or thing. examples: I went to the city. The man was kind. A proper noun names a specific person, place, or thing. Always capitalize the first letter of a proper noun. examples: I went to San Francisco.
The width of the steps is flexible. A wide deck staircase (5 feet and beyond) feels graceful and looks it too. A narrow one, for example 3 feet wide, might feel cramped. Very wide steps are great...if you have the room for them and they work with your design. These usually work best with a single set of deck stairs.
Agreed that 42 wide stairs is a good width and is pretty common. If you want a more deluxe feel, go up to 48. Be aware though, certain building codes about railing requirements for wider stairs. Riser height is comfortable at around 7.5. Some prefer a lower rise as mentioned above.