Adjustable Steel Prop – Height-Adjustable Shoring for Concrete Formwork

Created on 06.01

Adjustable Steel Prop: Reliable Height-Adjustable Support for Concrete Construction

In concrete construction and temporary shoring, reliable vertical support is essential for safety and structural integrity. Adjustable steel props (also known as acrow props or telescopic steel props) are the industry’s go-to solution for supporting formwork, slabs, beams, and falsework — offering fast height adjustment, high load capacity, and durable performance for residential, commercial, and infrastructure projects.

What Is an Adjustable Steel Prop?

An adjustable steel prop is a telescopic vertical support system consisting of an inner tube and outer tube with a series of pin holes and a threaded adjustment collar. This design allows for continuous height adjustment within a specified range, making it ideal for supporting concrete formwork during pouring and curing. It is commonly used as a shoring post for slab formwork, beam formwork, and early stripping systems.

Why Contractors Choose Adjustable Steel Props

1. Fast & Precise Height Adjustment

The combination of pin holes and threaded collar allows for quick coarse adjustment and fine-tuning. Most props offer an adjustment range of 500–800mm, accommodating varying floor-to-floor heights without cutting or modifying components.

2. High Load Capacity

Manufactured from high-grade steel tubing (typically Q235 or Q355), adjustable steel props deliver impressive load performance. Standard props support working loads of 15–25 KN (approximately 1.5–2.5 tonnes), while heavy-duty versions can reach 30–40 KN.

3. Durable & Reusable

With proper handling and maintenance, steel props can be reused 200–300 times or more. Galvanized or painted finishes provide corrosion resistance, extending service life even in demanding site conditions.

4. Safe & Reliable

Each prop features a safety pin to prevent accidental collapse and a slotted base plate for secure floor contact. Many models also include a captive nut system to prevent component loss during transport.

5. Compatible with Multiple Systems

Adjustable steel props work seamlessly with H20 timber beams, aluminum beams, formwork panels, and early stripping systems — making them a versatile choice for any concrete forming application.

Key Technical Specifications

Parameter
Value
Material
Steel (Q235 or Q355)
Outer Tube Diameter
60mm (standard) or 76mm (heavy-duty)
Inner Tube Diameter
48mm or 60mm
Height Range Options
1.5–2.5m, 2.0–3.5m, 2.5–4.0m, 3.0–4.5m
Adjustment Range
Approximately 500–800mm
Working Load
Standard: 15–25 KN (1.5–2.5 tonnes)
Heavy-Duty Load
30–40 KN (3–4 tonnes)
Reusability
200–300 cycles
Surface Finish
Electro-galvanized, hot-dip galvanized, or painted

Common Applications

  • Slab formwork support — primary vertical shoring
  • Beam formwork support — under H20 or LVL beams
  • Early stripping systems — fast-cycle floor construction
  • Temporary shoring — renovations, openings, and underpinning
  • Falsework support — bridges and infrastructure

Why Choose Our Adjustable Steel Props?

As a reliable supplier of formwork accessories, we offer:
  • Precision welding — consistent quality, no defects
  • Full height range — sizes to suit any floor-to-floor requirement
  • Safety features — safety pin, base plate, and captive nut included
  • Bulk packaging options — palletized or bundle packing for easy handling
Need reliable vertical support for your next concrete pour?
0

About us

As a trusted solution expert and material supplier in formwork and scaffolding, we bring full-spectrum capability under one roof—from in-house engineering and precision manufacturing to global logistics and on-site support. Our factories operate with rigorous quality control systems, producing formwork panels, modular scaffolding, and custom steel solutions that meet international safety and performance standards. By controlling the entire supply chain, we ensure shorter lead times, consistent product quality, and competitive pricing—giving contractors and developers the confidence to execute complex projects on schedule. Whether you need rapid-assembly slab formwork, heavy-duty shoring towers, or suspended access scaffolding, our design teams work closely with yours to optimize material usage, reduce labor costs, and enhance site safety. Backed by a responsive service network and real-world project experience across residential, commercial, and infrastructure sectors, we don't just supply materials; we deliver certainty at every pour, every lift, and every level of your build. Build smarter, safer, and stronger—powered by manufacturing excellence.

Contact Us