Stairwell 3 Rung Main FrameThe main frames used on the Alto Stairwell Tower

Used in pairs

This part is used in standard towers and BS 1139-6:2022 tower configurations up to specified heights as set out in the manuals or assembly guides

This version is used in towers with 1

7m platform units as the infill platform on various BS 1139-6:2022 HD tower configurations

7m bays in the adjacent tower runs

This is the mandatory part for the Stairwell-Pro Tower

4m long MD tower

the Alto Mini Tower and the Alto Stairwell Tower

Wooden toeboard used on various BS 1139-6:2022 HD tower configurations

The standard stabiliser for single and double width HD towers

Used in combination with standard plain 1

This part is used in towers with 2