Installation Guide
17    www.mylenstairs.com 
10. Slide the column cap (12) onto the column and through the hole in the 
platform. Ensure that the column cap is fully inserted and resting flush on 
the platform. 
11. Secure the platform to the column with the platform nut spacer (13) and 
hardware (C) and (D). There should be between ½” and ¾” of threaded 
rod above the nut. Spin the threaded rod until it is within this range, then 
tighten the nut to 25 ft-lbs. This will compress the column and remove any 
gaps between the treads and column segments. The column nut will be 
fully tightened in later steps.  
Do not stand on the treads or platform. They are not fully 
secured at this time. Walking on the stair at this time could 
cause the stair to become unstable and fall and result in 
serious injury or death.  










