What tool is used to level a scaffold frame?

The screw jack is a tool specifically designed for leveling scaffold frames by adjusting the height of the scaffold's legs. It allows for precise elevation, ensuring the scaffold is stable and level on uneven surfaces. The screw jack can be adjusted vertically, making it a versatile tool in scaffold assembly and safe use.

While a spirit level is often used to check that surfaces are level, it does not actively adjust the height of the scaffold. A leveling rod is typically utilized in surveying and does not pertain to scaffold framing. An adjustable wrench serves a different purpose in securing or adjusting nuts and bolts rather than leveling the structure. Therefore, the screw jack is the most appropriate tool for leveling a scaffold frame.