Stairway/Platform System

9 Pitch 30° 38° 45° 60° Step depth 320 mm 320 mm 240 mm 160 mm Stairway Assembly Sets GP The Stairway/Platform System includes various Assembly Sets GP for different stairway pitches. ■ ■ Stairway Assembly Set GP 30° (0.0.652.18) ■ ■ Stairway Assembly Set GP 38° (0.0.652.32) ■ ■ Stairway Assembly Set GP 45° (0.0.652.12) ■ ■ Stairway Assembly Set GP 60° (0.0.652.13) Stringer profile The following profile is recommended as a stringer for use with all Stairway Assembly Sets: ■ ■ Profile 8 120x40 light (0.0.416.66) Note: You can find a formula for calculating the length of the stringer profile alongside the Stairway Assembly Sets GP on page 12. Steps European Standard EN ISO 14122-3 requires an overlap of at least 10 mm on steps. This means that different step depths are required for different pitches. Step depth 160 mm ■ ■ Step Profile 8 160 (0.0.650.14) ■ ■ Step Profile Bracket Set 160 (0.0.647.13) Step depth 240 mm ■ ■ Step Profile 8 240 (0.0.650.15) ■ ■ Step Profile Bracket Set 240 (0.0.647.15) Step depth 320 mm ■ ■ 2 x Step Profile 8 160 (0.0.650.14) ■ ■ Step Profile Bracket Set 320 (0.0.647.14) ■ ■ Step Spacer Profile 24x8 (0.0.650.76) When using the Stairway Assembly Set GP with a 60° pitch, it is important to ensure that the top step is 240 mm deep rather than 160 mm. The various step depths can be achieved by combining the following components: