Where a window is provided as the emergency escape and rescue opening, it shall have a sill height of not more than 44 inches (1118 mm) above the floor; where the sill height is below grade, it shall be provided with a window well in accordance with Section R310.2.3. R310.2.3 Window wells.

What is the standard window sill height?

Standard Height of Window Sills
Windows are generally constructed 3 feet above the floor. The windows are installed at the bottom of the windows. The sills are often attached to 2- by 4-inch blocks that are inserted between the drywall and the wall studs so that there is plenty of mounting material to hold the sills.

How do you measure a window sill height?

Measure Window Height

  1. Use the tape measure to measure from the sill to the top of the window opening.
  2. The sill is where the sash rests when closed. …
  3. Make three vertical measurements – on the left side of the window from the sill to the header, then the center and finally on the right side.

How low can a window be to the floor?

24 inches

Minimum Window Sill Heights
The 2018 IRC continues to require the bottom of openings created by operable windows to be a minimum height of 24 inches above the adjacent interior floor when they are more than 6 feet above the grade outside the window.

What does sill height mean?

The height between the base of the window and floor level is known as sill height. In general, to ensure privacy, the sill height in bathrooms and bedrooms is kept equal to or greater than 1100 mm(3.5 feet) from the floor level.

What is the maximum height that bedroom window sills can be above the finish floor?


The sill must not be higher than 44-inches from the finished floor. The operable portion of the window must be at least 24-inches high and at least 20-inches wide, with a net area at least 5.7-square feet per table 1.

What size sill do I need?

b) The Depth of an inner Window Sill
Take the measurements between the front edge of the wall opening and the lower edge of the frame. Then add 10 – 20 mm to this value. The added value defines the part of the component that is later embedded under the profile of the frame.

What is sill height and lintel height?

Sill level is height or distance between bottom of window frame to floor level, Generally, it is kept around 900mm (3 feet) height above floor level. While lintel height is height or distance between top of door frame to floor level,Generally, it is kept around 2.1m (7 feet) height above floor level.

How tall are ceiling to floor windows?

8 to 10 feet tall

Floor-to-ceiling windows are typically 8 to 10 feet tall, with a gap of around 16 inches between the ceiling and the top of the window. However, if your ceiling is angled or comes to a high point, your windows could be 16 feet or more in height.

What is the minimum height for a window sill in feet and inches?

The minimum window-sill height requirements are intended to reduce the number of injuries from falls by children through open windows. The 24-inch sill height is typically above a small child’s center of gravity, reducing the likelihood of the child’s toppling over the sill.

Do all windows need to be the same height?

Remember the Head Height Should be The Same in Each Room
While the height of the bottom of the window can vary depending on its size, the top should remain consistent throughout the property to maintain interior décor appeal.

How high should a window be from the floor UK?


Approved Document K (England) provides recommendations for the minimum height of windows (800mm) above floor level and guarding for windows where they fall below these levels.

How high are window sills UK?

In a living room you will find the sill height far lower (typically 800mm or less ) so that you can view the outdoors while seated. Whereas in a bedroom the sill will be higher and nearer to 1100mm from the floor to provide more privacy to the resident.