This photo shows the specific codes that need met when adding a spiral staircase to any space.

Interior Design Modern White And Orange Nuance Of The Interior Metal Spiral Staircase Kits That Can Be Applied Inside The Modern House Design Ideas With Grey Floor Inside And Also Warm Lighting Design Interior metal spiral staircase kits

spiral staircase dimensions - חיפוש ב-Google

spiral staircase dimensions - חיפוש ב-Google

house plans with circular staircase | How to build a spiral staircase

Floor Design: Inspiring How To Build A Spiral Staircase, how to build, how do i design a spiral staircase ~ 2 Quick