Because staircases are necessary for climbing on the upper floor and to get down from the upper floor to the lower one.
There were plenty of small staircases but there were two grand staircases.
Number staircases in the white house are 10
There's a video on building staircases & tips for building staircases. (See the link in the "Related Links" section below)
Willibald Mannes has written: 'Designing staircases' -- subject(s): Staircases, Stairs
Spiral staircases are included in the Sims 3 Generations expansion pack.
cochleaphobia
The typical step height for staircases in residential buildings is around 7 inches.
First class had many staircases but there were two grand staircases. The largest one was aft.
The standard step height for staircases in residential buildings is typically around 7 inches.
The normal step height for staircases in residential buildings is typically around 7 inches.
The standard step depth for staircases in residential buildings is typically around 10 inches.
The standard step height for staircases in residential buildings is typically around 7 inches.