What diameter of cable can be used as a handrail?

The selection of a 1/4" steel cable as a handrail is appropriate due to a combination of factors, including strength, safety, and ease of use. A cable diameter of 1/4" strikes a balance between being robust enough to support weight and being manageable for grasping.

Steel cable is favored for its tensile strength, and 1/4" diameter is typically strong enough to withstand the necessary loads for safety standards in handrails. This size provides adequate support in a residential or commercial setting while allowing users to grip it comfortably. Handrails must be easy to hold onto to ensure they provide the intended safety benefits; a diameter of 1/4" offers enough thickness for a firm grip without feeling cumbersome.

In contrast, smaller diameters, such as 1/8", may not provide sufficient support or grip, potentially compromising safety. On the other hand, larger diameters like 1/2" or 3/4" could be too bulky for users to comfortably grasp. Therefore, 1/4" steel cable is the optimal choice, ensuring both safety and usability.