Role of Base Plates in Scaffolding Systems A base plate is a scaffolding component consisting of a flat, rigid steel plate with a central spigot (or pin), used to create a stable, level foundation. Its primary function is to evenly distribute the weight of the entire scaffolding structure onto the ground, preventing the uprights (standards) from sinking, shifting, or collapsing. Depending on the specific application, it serves to distribute loads, provide stability, or act as an installation connection point.