ARCHELP

type

model

layout

linear

1.

Single straight flight

2.

Parallel staircase with landing (two flights)

3.

U-shaped staircase with landings (three flights)

4.

Rectangular staircase with landings (four flights)

5.

90 degree staircase with landing (two flights)

winding

6.

Single flight with 3, 5 or 7 winding steps at the top of the flight

7.

Single flight with 3, 5 or 7 winding steps at the bottom of the flight

8.

Single flight with 3, 5 or 7 winding steps at the top and bottom of the flight in the same direction

9.

Single flight with 3, 5 or 7 winding steps at the top and bottom of the flight in opposite directions

winding (continued)

10.

90-degree staircase with 3, 5 or 7 winding steps at the angle

11.

180-degree staircase with 6, 10 or 14 winding steps at the angle

12.

180-degree staircase with 5, 9 or 13 winding steps at the angle

13.

U-shaped staircase with 3, 5 or 7 winding steps at each angle

spiral

14

Spiral stairs