Stairs measurements

Ensure a perfect fit for your stairs with this essential measurement guide. Discover tips and tricks to measure your stairs accurately and create a safe and stylish staircase.
Stair tread depth? - Specific Inspection Topics / Interior Inspections - InterNACHI®️ Forum Stairs Measurements, Stair Rise And Run, Stair Dimensions, Stairs Treads And Risers, Stairs Width, L Shaped Stairs, Stair Layout, Deck Stairs, Standard Staircase

I am looking for information on the minimum stairway tread depth. I came across a Carson Dunlop photo and it states 9 to 9 1/4 inches. According to NACHI, 10 inches is recommended. I am not necessarily interested in what code says but stating a safe tread depth to navigate the stairwell safely.

Maria Aloha