Standard Window Height From Floor Level | Sill Height of Window

Standard Window Height From Floor Level

When designing or renovating a building, one of the key considerations is the placement of windows. Windows provide natural light and ventilation and can enhance the overall aesthetic of a building.

One important factor to consider when positioning windows is their height from the floor level. The standard window height from the floor level is typically determined by a variety of factors, including building codes and regulations, the function of the room, and the type of window being installed.

It is important to ensure that windows are installed at an appropriate height to maximize their functionality and ensure the safety of occupants.

In this article, we will explore the standard window height from floor level, the factors that influence this height, and some best practices to consider when installing windows in a building.

The proper height of the window is very important for comfortable living as it permits the sun and natural air entry from the exact level.

What Is a Window?

window is one type of opening in the wall, which provides passage to pass light, sound, and sometimes air. Modern windows generally have glazed or covered with transparent or translucent material.

The windows are the most important part of any house they provide light, fresh air, and ventilation in the house.

Windows are also useful for the purposes of architectural decoration. The windows provided allow light into the room and enhance your wall colors or furniture.  

It provided seasonal utilities like allowing sun heat into the room and closing the opening during summer to avoid outer heat to enter the house.

Read More: Minimum Ceiling Height Standards for Residential House

Window Height From Floor

Windows are a very essential part of any house. For a simple residential building or house, a minimum of 15 % area of the room is allowed to provide for window openings.

That means we can provide a window opening area of around 15 % of the room area. if the area of the room is 100 sq. ft.,

Then we can provide one window with size 4 ft x 4 ft. For public and commercial buildings this is around 20 % allowed.

The width of the window depends on factors like

  • The dimension of the room
  • Use of the room
  • Location of the room
  • Direction and speed of prevailing winds
  • Climatic conditions of the region, and
  • Local trends, aesthetic view, etc.

Read More: Building Bye-Laws and Standard Dimensions of Building Units

Standard Size of Window

The Following are some standard sizes of windows that are mostly used in the house.

The standard height of the window from the floor generally fix, but it can be changed as per architectural and owner requirements.

Windows height is fixed around 4 ft or up to the level of the door frame or lintel level.

Standard Window Size
Standard Window Size

1) 2′0″ x 3′0″

2) 3′0″ x 4′0″

3) 5′0″ x 4′0″

4) 6′0″ x 4′0″

Standard Height of Window From Floor Level

The standard height of the window from the floor level is also called the sill level of the window. So, there are two levels that are important while placing the window in position.

1. Sill Level – The level or distance from the floor to the bottom of the window frame is called the Sill level. It is generally kept about 900 mm or 3 ft.

2. Linter Level

The level from the top of the floor level to the top of the door frame on which the lintel is placed is called the Lintel level.

The lintel is generally provided to avoid direct load on the wall and distribute the above-wall load to the below load. 

The lintel is generally made up of Reinforced concrete or cement mortar. Lintel Level is provided as the same as the height of the door which is generally 2.1 m or 7 ft.

 Standard height of window from floor level
Standard height of the window from floor level

So, the Standard height of the door from floor level is 2.1 m or 7 ft. it can be simply calculated by following calculations,

Windows height from floor level = Height of Door – Height of Window

If the height of the door is 7 ft and the height of the window is 4 ft, then the height of the window will be = 7 ft – 4 ft = 3 ft.

The Standard height of the window from floor level is 900 mm or 3 ft. It can vary depending on the size of the window, ceiling height, and owner’s requirements.

Types of Windows

There are different types of windows available in the market, you can choose from them as per your requirements.

The windows can have different shapes like square, rectangular, and even triangular. Some windows open outward, and some slide up, down, or slides one side to open.

These types are available in different materials like wood, steel, aluminum, and PVC also used to make a window.

Following are the 18 popular types of windows as listed below:

  1. Single Hung Windows
  2. Double Hung Windows
  3. Arched Windows
  4. Awning Windows
  5. Bay Windows
  6. Bow Windows
  7. Casement Windows
  8. Gress Windows
  9. Garden Window
  10. Glass Block Windows
  11. Hopper Windows
  12. Jalousie Windows
  13. Picture Windows
  14. Round Circle Windows
  15. Skylight Windows
  16. Sliding Windows
  17. Storm Windows
  18. Transom Windows


What height should a window be from the floor?

3 ft or 900mm
The height of the window from the ground or floor level is called the sill level. Whereas the minimum height required as per standards is 900mm or 3 ft. However, the sill level might vary depending on the requirements of the Houseowner.

The width of the window depends on which parameters?

Following are the parameters on which the width of the window is dependent;
1. The dimension of the room
2. Use of the room
3. Location of the room
4. Direction and speed of prevailing winds
5. Climatic conditions of the region, and
6. Local trends, aesthetic views, etc.

How high is a standard window?

2.1m or 2100mm from the floor
The height of the window top from the floor is also called as Head Height of the window. As per standards, it is maintained at 2.1 m from the floor.

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2 thoughts on “Standard Window Height From Floor Level | Sill Height of Window”

  1. What will be impact if aluminum 3′ x 3′ size window is fixed under the ceiling without any Lintel.

    Will the ceiling sag due to no support.

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