What type of ladder raise is typically used when the ladder is raised perpendicular to the target surface?

The flat ladder raise is utilized when the ladder is positioned perpendicular to the target surface, such as a wall. This technique involves laying the ladder flat on the ground, then raising one end towards the vertical surface. This allows for a stable and controlled elevation of the ladder, ensuring that it can be securely placed against the target.

In contrast, other types of ladder raises have different positioning or movements. For instance, an overhead raise involves lifting the ladder above the head before positioning it, which is not typically done when the ladder needs to be positioned flat against a surface. Similarly, a throw raise requires tossing the ladder into position, which would be more suitable for accessing elevated areas quickly, rather than a controlled method where the ladder is raised perpendicularly. The beam raise focuses on using the rungs and often involves a more horizontal placement instead of a vertical one. Thus, the flat ladder raise is specifically designed for setups requiring a perpendicular approach to a vertical surface, making it the correct choice.