How Thick Should A Window Sill Be?

How much overhang should a window board have?

In our experience, the overhang is usually around 1 inch (approx.


This is also described as how far the window board sticks out past the edge of the wall (plaster finish).

However, don’t let this stop you have more or less of an overhang – as long as it is practical, it’s down to personal preference..

How deep should a window sill be?

2 to 8 inchesAverage depths for manufacturer window sills range from 2 to 8 inches. However, the depth of the sill can be lower or higher depending on custom fittings and your style preferences The thickness of the cavity walling and the depth of the window opening determine the depth appropriate for window sills.

What is the best wood for window sills?

The classic sill material is Ponderosa pine. I would not use poplar, it is probably more prone to rot. Others have suggested better woods that are more decay resistant.

Does a window need a sill?

Do I Need to Have a Window Sill? Window sills are a necessity. Without the window sill, the window, wall and floors inside the home would all become water damaged. Window sills also play an important role in the functionality of the window.

What angle is a window sill?

Most sill angles run from 7 – 15 degrees. Dotted line below is 10 degrees.

What is a window stool and apron?

What is a Window Apron? An apron is decorative trim installed against the wall immediately beneath the stool of a window. It accentuates the look of the window inside the house; almost a like a piece of moulding.

What material is used for window sills?

As building standards evolved, wood became a standard building material for window sills. However, wood is susceptible to rot, succumb to water damage, and fading from the sun. A better choice is using natural stone window sills that are extremely durable and sure to last for years.

How do you measure a window sill?

Determine the length of the sill by measuring the distance of the reveal from left to right. The reveal is defined as the space between the left and right walls and the distance from top to bottom.

Are interior window sills necessary?

While sills are a great place to put plants, they’re also a necessary part of the window, keeping out rain and making windows more energy efficient. Sills are part of the window trim, which also includes the head casing, side jambs and the apron, the piece attached to the wall beneath the sill.

What is window sill height?

3 feetStandard 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.