When setting up scaffolding, which is a preferred method of achieving stability over using blocks?

Utilizing adjusting screws is considered a preferred method for achieving stability when setting up scaffolding because they allow for precise leveling and adjustment of the scaffold base. This is crucial in ensuring that the scaffolding is stable and can safely support workers and materials.

Adjusting screws can be finely tuned to account for uneven ground or slight variations in surface height, which helps to distribute weight evenly and reduces the risk of tipping or collapse. This method is preferred because it provides a secure, controlled way to ensure that the scaffolding remains stable throughout its use.

In contrast, while adding more scaffolding poles may seem like a solution for stability, it does not directly address issues related to uneven surfaces or unstable ground. Blocks, like bricks, may provide additional height but can create uneven surfaces when stacked improperly, increasing the risk of instability. Adjustable ladders are useful in some situations but do not provide the same level of overall support and stability for scaffolding structures as adjusting screws do.