All-steel adjustable props (often referred to as acrow or ‘acro’ props) are the most common form of support prop used and are available in five different sizes.

The base and top plate of a steel adjustable prop are quite small.

Steel adjustable props are popular on construction sites, often used as a support when building.

All-steel adjustable props are stronger than adjustable support props as they are made completely from reinforced steel.

Unlike push pull props, however, they can only be used in a vertical position as the feet are fixed.