Extended Stack I-Beam Hanger (7in-11in Flange)

Used for Offset and Direct Loads and suspends Knight’s RAD4110, RAD6110, or RAD7510 Series Aluminum Rail Systems. When using the MRHS42181 Hanger, structural steel can be run perpendicular or parallel to the Knight rail system.

This hanger is no longer stocked and has been superseded by MRHS42182.

part number



  • For Offset and Direct Loads Only.
  • Adjustable Height Hanger.
  • Structural Support Flange Size: 7 in. – 11 in. [178mm – 279mm].
  • Max I-Beam Flange thickness: 7/16″ (Thicker flange beams will require modified hanger, available upon request).
  • Coated with an environmentally friendly corrosion protection. ** (Autophoretic ACC 900®).
  • Vertical Adjustability: Up to 1.5 in. [38mm]. (Adj. in .25 in. [6.35mm) increments)
  • Optional RWA4133 Safety Cable.


19.1 lbs. [8.66kg].