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Adjustable Structural Supports Since 1951.

How to Use Screw Jacks & Steel Shores to Level Floors

Floor Leveling with Ellis Steel Shores

ELLIS STEEL SHORES are a fast and safe way to re-level and support sagging floor joists in residential applications. The Ellis Steel Shores are available in many different heights with various lengths of screw adjustment. They are available with or without thrust bearings in the adjustment nut. The purpose of the bearings is to reduce friction when making adjustment under load and making it easier to jack weight.

Choose from three types in various lengths:

Details on How to Fix Your Sagging Floors with Ellis Steel Shores

  1. Measure Height:
    Measure the total shoring height (floor to beam).
  2. Determine appropriate Steel Shore to use.  Choose a Steel Shore that will fit in your space and provide enough adjustment and load capacity to correct your sagging joist.
  3. Place Steel Shore on a solid and flat foundation directly under the joist in need of additional support. 
  4. Raise Screw and top plate.  Simply turn the Steel Shore Nut to raise the top plate until it is in direct contact with your joist.
  5. Check to be certain your Steel Shore is plumb and level.  Re-position shore if needed.
  6. Slowly turn Steel Shore nut to correct sagging joist. 
  7. Tighten safety lock set screw with an Allen wrench to lock adjustment nut in place.
  8. Fasten the top plate to your joist with duplex nails or screws.

*Steel Shores come standard with a 3/8"x6"x6" (light duty) or 1/2"x8"x8" (heavy duty) flat plate.  Top plates are interchangeable with U-Heads designed to straddle both sides of your joist.  Choose from a variety of options:  U-Heads for Light Duty Steel Shores.

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