What is the difference between plinth level and formation level? | Components of Plinth Beam

 

What is the difference between the plinth level and formation level?

    Let me explain to you guys this easy illustrative image. A building is divided into two components

1. The substructure:-The substructure of a house is the structural work below the ground level used to support the structure above. Foundations, basement & subfloor are some components of this area
2. Superstructure:- That part of the building which is constructed above the ground level is known as the superstructure. Walls, roof, floor, veranda, doors, and windows are examples of Super Structure.

    So basically Plinth is a portion of the structure between the surface of the surrounding ground and the surface of the floor immediately above the ground. The thickness of the plinth depends on the load of the superstructure and the width of the foundation concrete in other words the part of the superstructure of the building between the ground level and floor level is called the Plinth level.

    While the Formation level is prepared ground on which a sub-base layer is laid. It is the level at which excavation ceases and construction starts. It is the lowest point of the path structure. In the above diagram, the ground below the foundation concrete is the Formation level

    In short Formation, the level is dressed ground prepared for the construction of the substructure and superstructure.