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.
504.2 Treads and Risers. All steps on a flight of stairs shall have uniform riser heights and uniform tread depths. Risers shall be 4 inches (100 mm) high minimum and 7 inches (180 mm) high maximum. Treads shall be 11 inches (280 mm) deep minimum.