This is what we call a double curtail entry step these can look very impressive but these cannot be used in a narrow hallway.
The bottom step is a Double Go Curtail step and the seconde step is a Single Go Curtail step ( or what you would class as a standard Curtail step).
Double Curtail + single Curtail
Bullnose Step
This staircase has a Bullnose entry step this is by far the most popular of the entry steps and we usually recommend this as it not only makes your hall feel more spacious by setting the newel post back one step but it also adds strength the the bottom newel post.
The Townsend staircase is a Bespoke open plan staircase - the bottom step is like a curtail step but squared off look at the Townsend staircase
For more and plan images of Entry steps go to our Stairplan.co.uk site