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ALX Cable Stair Rail Middle Post Kit

SKU: 399169P
QTY Available: 168
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ALX Cable Stair Rail Middle Post Kit

Product Highlights

  • Part of the Deckorators ALX Cable Railing system
  • Use when installing cable rail on stairs
  • Less hassle – post is predrilled on 2 sides for cable
  • Hardware is hidden inside for a clean look
  • Matching post base trim & post cap included
  • Choose 49 in. or 54 in. posts in 4 durable powder-coated finishes
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Product Details

Color Textured Black
Length 2.5 inches
Material Powder-coated aluminum
Width 2.5 inches
Height 49 inches
What Is Included 1 aluminum middle stair post, 1 post cap, and 1 post base trim
Nominal Dimensions 2.5 in. x 2.5 in. x 49 in.
Weight 6 lbs
Brand Deckorators
Contact Type
Vendor Ship Profile expected to ship within 5-7 business days
Pressure Treated Chemical
Return Policy This item is returnable if in original condition.
Can Be Used With ALX Cable Rail End Post Kit
ALX Cable Rail Line Post Kit

Product Overview

If you’re installing Deckorators® beautiful ALX Cable Railing on stairs, you'll need Middle Posts to go between the top and bottom posts. Holes for cable are predrilled and properly aligned already, saving you a bunch of time. The holes are elongated to allow for the change in stair angles. The hardware that tightens and secures the cables is hidden in the post.

The post is heavy-gauge aluminum, thickly powder-coated for a uniform, durable, hard finish that weathers outdoor exposure beautifully. A matching post cap and post base trim are included to finish your post. You can replace the included post cap with a lighted post cap if you wish (sold separately). Post has a leveling plate and predrilled aluminum base. Post fasteners are not included.

To complete your cable stair railing project, you will need a Top Rail Kit, Line or End Posts for the top, Bottom Stair Posts, and Cable Kits.

Helpful to have: Mandrel & Wheel kit to trim cable cleanly, Cable Release Key to release cable tension in case of mistakes.


  • Limited lifetime warranty on manufacturing & powder-coating defects
  • 25-year removal & replacement warranty
  • 10-year limited salt & coastal water limited warranty

Installation instructions can be found here.