What determines the size of a chain?

The size of a chain is primarily determined by the diameter of the wire or chain material. The diameter signifies the thickness of each link in the chain, which ultimately influences its strength and load-bearing capacity. A larger diameter indicates a stronger chain that can support heavier loads, making it crucial for rigging and lifting applications where safety and reliability are paramount.

While the number of links, welds, or the overall weight of the chain can have their own implications regarding the chain's length and structural integrity, they do not directly define the chain's size. The diameter is a key factor in assessing how much stress and weight the chain can manage, serving as a vital measurement in both engineering and practical applications in rigging.