Stair angle
Determines the steepness of the flight, affecting comfort, safety and floor space. The comfortable range for a home is 30°–40°.
01 /Classification of incline angles
The stair angle determines its steepness and directly affects comfort, safety and the amount of floor space it takes up. The most comfortable range for living spaces is 30° to 40°.
- 🛌 30°–35°. Gentle and the safest stairs. Ideal for the elderly and small children. Require a lot of floor space.
- 🏡 36°–40°. The gold standard for a private house. The optimal balance between walking comfort and space saving.
- 📐 41°–45°. Steep designs. Permitted when space is scarce. Descending such a staircase requires extra caution.
- 🪜 Above 45°. Auxiliary stairs (attic, basement, "alternating tread"). They can be descended safely only backwards.
02 /How to find the angle
To calculate the angle, measure two parameters:
- The height from the first-storey floor to the second-storey floor.
- The length of the staircase's projection on the floor (how much space is allocated for the flight).