According to the OSHA scaffold standard, what is the maximum height to width ratio for free standing scaffolds without securing them?

The correct answer is based on regulations set by OSHA regarding the stability of free-standing scaffolds. According to these standards, a free-standing scaffold must not exceed a height-to-width ratio of 4:1 without being secured. This means that for every unit of width at the base, the height of the scaffold should not be more than four units.

This regulation is designed to prevent tipping and ensure safety while workers are on or around scaffolds. A lower height-to-width ratio contributes to better stability, which is critical when workers are elevated off the ground. This standard is particularly important in construction and maintenance environments where scaffolding is commonly used, as improper configurations could lead to falls or collapses.

In contrast, the other options indicate higher ratios that OSHA does not permit for free-standing scaffolds without securing them. This could potentially make these structures unsafe, leading to increased risks of accidents on job sites.