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

The standard short plain platform for MD towers

A shallow diagonal brace for a 1

Base plate leg to be used instead of the standard leg and castor on BS 1139-6:2022 HD tower configurations

The horizontal bracing component used on the Alto Stairwell Tower

8m bays with a 2m lift

The stair has a clear tread width of 750mm

The adjustable base feet for the Alto Stairwell Tower

This brace is used in certain special towers and AGR towers

The standard short trap platform for Alto HD ladderspan towers

The large stabiliser for single and double width HD towers

This is the size of castor that is supplied as standard with Alto MD towers

0m ALTO Universal Stair Unit - alto known as a 4 Tread Universal Stair - has a lift height range of between 730mm and 1000mm approx