Scaffolding steel shoring props for building construction
What is steel shoring prop?
A steel shoring prop (also called an adjustable steel prop or Acrow prop) is a temporary structural support used in construction to hold loads vertically during building, renovation, or repair works. It is commonly employed to support ceilings, walls, floors, beams, and formwork until permanent structural elements are in place.
Components:
Outer Tube: The main body of the prop.
Inner Tube: Slides inside the outer tube to adjust the height.
Base Plates: Flat plates at both ends to distribute the load on the floor and against the supported structure.
Adjusting Collar and Pin: A collar with holes and a steel pin allow coarse height adjustment, while the collar can be rotated for fine adjustment.
when to use steel shoring prop?
You should use steel shoring props in the following scenarios:
1. Supporting Concrete Formwork
During slab casting in reinforced concrete structures.
To hold formwork panels and beams in position until the concrete cures and gains strength.
2. Underpinning & Temporary Structural Support
When removing load-bearing walls or cutting openings (doors, windows) in masonry walls.
During renovation or retrofitting works to support existing floors or beams temporarily.
3. Slab or Beam Repairs
To support damaged slabs or beams while repairs are performed.
In case of structural cracks, to relieve load until reinforcement or replacement is completed.
4. Excavation & Basement Construction
When excavating under an existing structure to prevent collapse.
As part of a shoring system to stabilize vertical faces of excavation (with additional bracing).
5. Temporary Safety During Construction
Aligning precast elements (columns, beams) before final connections.
Supporting cantilevered sections or balconies during installation.
How to use steel shoring prop?
1. Inspect the Props
Check for any damage, bends, rust, or cracks.
Ensure the threaded section and nut move freely.
Verify the base plate and head plate are not deformed.
2. Determine the Load and Span
Confirm the load capacity of the prop (varies by size and extension).
Do not exceed the safe working load (SWL) given by the manufacturer.
If higher loads are needed, use multiple props or a shoring system.
3. Position the Props Correctly
Place a firm sole plate (timber pad) under the base plate on soft ground or concrete.
Ensure vertical alignment using a spirit level.
The head plate should fit the supported element (beam, slab, etc.).
If required, use a U-head or fork head for beams and flat head plates for slabs.
4. Adjust the Height
Extend the inner tube to the approximate height.
Insert the locking pin through the nearest hole.
Tighten the adjustable threaded collar (nut) by rotating it upward until firm contact is made with the structure.
5. Tighten and Secure
Apply final adjustment using the thr
How to transport steel shoring prop?
1. Step-by-Step Guide for Transporting Steel Shoring Props
Step 1: Inspection
Check each steel prop for cracks, bends, rust, or missing parts.
Ensure all adjustable components are tightened.
Step 2: Bundling
Group props into manageable bundles (usually 10–20 pieces).
Use heavy-duty straps or steel bands to secure each bundle.
Step 3: Loading
Use forklifts, pallet jacks, or cranes for lifting.
Place props on wooden pallets or steel racks for stability.
Stack bundles evenly to prevent tipping.
Step 4: Securing the Load
Use ratchet straps or chains to tightly secure bundles to the truck bed.
Check that there is no movement when the truck shakes.
Step 5: Protection
Place padding or separators between bundles to prevent scratches and damage.
Step 6: Compliance
Follow local transportation regulations for weight limits and securing methods.
2. Safety Checklist for Workers
✔ Inspect props for damage before transport
✔ Wear safety gloves and steel-toe boots
✔ Use lifting equipment (no manual lifting of heavy bundles)
✔ Ensure pallets are strong and stable
✔ Secure all straps tightly and double-check before departure
✔ Do not stack bundles higher than recommended limit
✔ Follow local road safety and load regulations
Can Steel Shoring Props Be Repaired?
Yes, steel shoring props can be repaired under certain conditions, but safety must always be the top priority. The decision to repair or replace depends on the type and severity of the damage.
When Can They Be Repaired?
Minor Thread Damage: If the threads on the inner or outer tube are slightly worn or damaged, they can often be cleaned or re-cut.
Loose or Damaged Nuts: The adjusting nut can usually be replaced if it is cracked or worn.
Surface Rust: Light surface corrosion can be removed by cleaning, sanding, and repainting with anti-corrosion coating.
Pins and Plates: Missing or damaged pins and base plates can typically be replaced without affecting the prop's overall strength.
When Should They Be Replaced steel shoring prop?
Severe Corrosion: If rust has deeply penetrated the metal, weakening its structure, the prop should not be repaired.
Bent Tubes: Any bending or warping of the inner or outer tube can compromise load capacity, making the prop unsafe.
Cracks or Fractures: Any visible cracks in the steel indicate a loss of structural integrity and require full replacement.
Unknown History: If the prop has been involved in an accident or subjected to excessive loads, replacement is safer.
Important Safety Note: After any repair, the prop should be inspected and tested to ensure it meets load capacity requirements. If in doubt, always choose replacement over repair to avoid accidents.
How many steel shoring prop can be loaded into 20GP container?
2.0m - 3.5m usually load 1200pcs
3.5m - 4.5m usually load 1000pcs
DIN EN 1065 CLASS B" PROPS LOADS TABLE
An adjustable telescopic steel prop shall be classified according to its nominal characteristic strength R,k and its maximum length max given in table 2.
For classes A,B and C props the nominal characteristic strength given in table 2 shall apply to the maximum extension length.For classes D and E props the nominal characteristic strength given in table 2 shall apply to allpossible extension lengths.
Table 2:Classification
Class |
Length at maximum extension |
Nominal characteristic strength (see |
A 25 |
2.50m |
20,4Kn |
B 25 |
2.50m |
27,2Kn |
C 25 |
2.50m |
40,8Kn |
Heavy duty steel shoring prop SGS Test Report as DIN EN 1065:1998
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