How it works

The J-Strut Advantage

J-Strut Props are a next-generation adjustable steel formwork prop independently certified to both Australian and British standards. J-Strut covers a range of approximately 1800mm closed to 3110mm fully extended, allowing a single prop to suit the most commonly required heights across residential and commercial sites. Adjustment is quick and efficient, with the prop able to be adjusted using an impact wrench for faster setup on site. Two key features set J-Strut apart from every competitor in this size class.

Higher-grade steel

More load capacity per kilogram of material
Precision thread design

Optimised for both impact wrench and manual operation
Real-world conditions

Tested under more demanding real-world conditions than competing products.

Impact Wrench Compatible

J-Strut is the only adjustable formwork prop on the Australian market designed to be operated with a standard impact wrench drill. Every competing product in this size range equires manual winding by hand.

Dual International Certification

J-Strut Props are independently certified to Australian Standard AS 3610:1995 and additionally tested to British Standards BS 5507-3:1982 and BS EN 12811. This is not a factory datasheet or marketing claim. It is a certified result from physical testing under demanding real-world conditions:

Built for Smarter Formwork

Practical features designed to make setup faster, adjustment easier and everyday work on site more efficient.

Impact Wrench Adjustment

Impact Wrench AdjustmentRaise and lower the prop quickly using a standard 1/2 inch impact wrench and J-Strut pinion.

One Person Operation

Hold the prop in position with one hand while making controlled adjustments with the other.

Precision Thread Design

The adjustment mechanism has been designed for both powered and manual operation, giving crews flexibility on site.

Built for the Jobsite

Higher grade steel construction provides strong load capacity while maintaining the familiar format of a traditional adjustable prop.

Works With Existing Accessories

150mm square end plates are compatible with typical Acrow prop accessories, making J-Strut easy to integrate into existing formwork systems.

Industry Recognised & Award winning.

See J-Strut in action

The only Australian-certified prop you can set with an impact wrench

J-Strut takes the traditional adjustable prop and makes it faster and easier to work with on site. Using the purpose designed pinion attachment, J-Strut can be raised or lowered with a standard 1/2 inch impact wrench, removing the need to manually wind the collar by hand.

This allows one person to hold the prop plumb while making precise height adjustments, helping reduce physical effort and speed up formwork setup.