Skip to main content
Craig Mason
Engineering Manager
Asked a question last year

What is purpose of lintel and sill level in building construction?

What is purpose of lintel and sill level in building construction?

Where am I?

In TheConstructor you can ask and answer questions and share your experience with others!

Jayden Adams
Construction Assistant

Window sill level

The level which is exactly below the window frame it is a horizontal shelf at the bottom of the window frame. It protects the junction of the window and provides additional support and stability for the window. Having level around 0.6m to 0.9m from floor level. variety of window sill materials available.

Lintel level:

This is the just above the window and door frame to take load coming from wall which is above the window and door frame. It may be of concrete, wooden, R.C.C., stone, etc. The level of lintel is around 2.1m to 2.3m.

SR.NO150.      PLINTH LEVEL                  SILL LEVEL                              LINTEL LEVEL        
    
1The plinth is the part of the superstructure between the top of the tie beam at the finished ground levelSill level is the part of window . Window sill are provided between the bottom of window frame and wall belowLintel beam the actual frame of door or window is not strong enough to support the weight of the wall above the opening and separate structural element has, therefore to be introduced. this known as lintel and similar to a beam
2This level of below the floor fishing . This level constructed beam that beam called Tie beam.This level between the base portion of the window and portion of the floor above ground level (upwards) is called the Sill level. A mortar bed or concrete bed is laid at the base of the window.The level between the top portion of the window and the top slab is called the Lintel level.
3The plinth is generally made up of Reinforced concrete or cement mortar.The sill is generally made up of Reinforced concrete or cement mortar.The lintel is generally made up of Reinforced concrete or cement mortar.
Wilma Caldwell
Architectural technologist

Purpose of lintel

  • Act as a tie beam.
  • To transfer load of above massonary of  window frame to the surrounding massonary.
  • To provide confinement of structure.
  • To support chhajja.
  • Act as a DCP.

Purpose of sill level

  • To provide support of windows frame
  • To provide smooth bottom surface to the window.
  • Sometime stand provide near to windows that time sill support stand.
  • Prevent water penitration.
What is purpose of lintel and sill level in building construction?

Lintel level and sill levels are parts of the wall.

Lintel Level

When a window or door is constructed, a load of bricks above it needs a base. And lintels are provided for the same. Above the window, a beam-like structure mostly made up of concrete (Structural wall) is constructed. the length of this beam can limit to slightly more than the length of the window or it can exceed to cover the whole wall and can act as a lintel beam. the height where the lintel beam is constructed is called lintel level

Sill level

The sill level are similar to the lintel level but it is constructed below the window and its length is the same as the length of the window only. the height at which this sill is constructed is called the sill level.

Peter Smith
Heating and ventilation engineer

Sill is a horizontal bed of mortar usually as wide as the wall provided below windows or other openings. Sill supports the windows.

Lintel is a structural RCC beam spanning throughout the length of the building or above the openings alone. Lintel supports the wall above the openings.

Eg. The window starts from the sill below it and ends with the lintel above it. (Upwards)

To know more about lintel,

https://theconstructor.org/building/lintel-types-uses/11420/21

Ricardo Kuhn
Construction Foreman

Basically sill is known as the horizontal bed of the mortar which is usually as wide as the wall provided below windows or other openings. Therefore sill supports the windows.

And lintel is made up of reinforced concrete or cement mortar .Therefore lintel support the wall above the openings.