Foundation of a reinforced concrete staircase

Internal staircase with wood finishes

Internal staircase

Double stringer timber frame staircase

Apartment building staircase

Concrete staircase with wooden railing

Spiral staircase with reinforced concrete landing

Double stringer timber frame staircase detail

U-shaped internal staircase

C-shaped staircase

L-shaped staircase

Cantilevered staircase design