How is the load rating of a sling primarily determined?

The load rating of a sling is primarily determined by its material, construction, and the specific configuration used. The material of the sling dictates its tensile strength and resistance to wear or environmental factors. For example, nylon and polyester slings have different characteristics that affect their load capacities. The construction aspect encompasses how the sling is woven or stitched, as this influences its durability and performance under load. Additionally, the configuration used—whether it is in a single leg, doubled, or used with hardware—can alter the load distribution and overall strength.

Colors and brands do not provide reliable information regarding load capacity, as they can vary widely and are not standardized indicators of safety or strength. Inspection frequency is important for maintaining safety standards but does not determine the initial load rating. The length of the sling can affect its usability and the setup of the rigging, but it is not a primary factor in establishing how much weight the sling can safely handle. Therefore, focusing on material, construction, and configuration is essential for accurately determining a sling's load rating.