Steel web bar joists are used in lieu of which type of joist?

Steel web bar joists are commonly used in lieu of wood joists due to several advantages in construction applications. Wood joists, while effective for light residential structures, have limitations in terms of span, strength, and resistance to fire and pests. Steel web bar joists provide a higher strength-to-weight ratio, allowing for longer spans without the need for intermediate support. This capability is particularly beneficial in commercial and industrial buildings where open spaces are necessary for layouts and flexibility in design.

Additionally, steel joists are not subject to the same issues as wood, such as warping, shrinking, or susceptibility to insects and decay. The durability and consistency of steel make it a preferred choice in many situations over wood joists, especially in environments that demand enhanced structural integrity and longevity.

In contrast, the other types of joists mentioned serve different purposes or have distinct characteristics that would not make them suitable replacements for wood joists in all cases. For instance, metal joists or steel plate joists would be more similar to steel web bar joists, while concrete joists are typically used in heavier construction scenarios where concrete shear and weight are advantageous. Thus, the selection of steel web bar joists as a replacement for wood joists aligns with the need for performance