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Viewrail FLIGHT Mono Floating Stairs, 90° Turn

Viewrail FLIGHT Mono Floating Stairs, 90° Turn

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The Viewrail FLIGHT floating stair system - 90º staircase is a customizable modern steel staircase capable of left or right turn. It’s often used to save space in homes where a straight staircase would interfere with the living space. The 90º stairs mono-stringer runs beneath both sections of treads. The upper stringer connects to the landing, and the lower stringer (often a smaller, specially cut steel stringer) connects to the landing as well.


  • Mild Steel
  • Accessible Installation
  • Custom Engineered
  • 4 Week Lead Time

The Advantages of a 90° Staircase

  • More dynamic appearance than a Straight Staircase
  • Can add to the privacy of a space by creating a visual barrier
  • Easily fits into restrictive spaces and corners
  • Landing platforms can make stairs easier to navigate by providing natural resting areas

The Disadvantages of a 90° Staircase

  • Can be difficult to carry large objects (such as furniture) up and down
  • Handrails must be designed and installed in segments
  • Can sometimes require a support for the landing
  • Can be harder to assemble than Straight Stairs
  • Support - Single Steel Stringer


    • Straight
    • 90° (or "L-shaped")
    • Switchback
    • 180° (or "U-shaped")

    Tread Types

    • Wire brushed
    • Smooth
    • Distressed
    • Beveled
    • Endurance
    • Thick (up to 4")

    Tread Spacing - Open-riser design

    Railing Options - Glass, Onyx Rod, Endurance Rod, Cable


    • LED treads
    • LED handrails
    • Grip strips
    • Bracket covers
    • Glass risers
Technical specification
  • Unique ref.90-stair-stringer
  • Product familyFLIGHT
  • Product groupMono
  • TypeObject (single object)
  • Date of publishing2022-06-22
  • Edition number1
  • Material mainSteel
  • Designed inUnited States
  • Manufactured inUnited States
  • BIMobject CategoryConstruction - Stairs
  • IFC classificationStair Flight
  • UNSPSC nameStair parts
  • UNSPSC code30161908
  • Uniclass 2015 CodeEF_35_10
  • Uniclass 2015 DescriptionStairs
  • CSI MasterFormat 2014 Code06 43 13
  • CSI MasterFormat 2014 TitleWood Stairs
  • OmniClass Number23-17 23 17
  • OmniClass TitleStairs
  • CSI UniFormat II CodeC20
  • CSI UniFormat II TitleSTAIRS

Region availability

North America
United States