The front can be wood sheetrock or other materials since it is only decorative.
Standard height of bay window seat.
When choosing a size for a bay window first consider standard sizes which range from 3 feet 6 inches to 10 feet 6 inches in width and from 3 feet to 6 feet 6 inches in height.
If it were my room i d do a pretty bar or tea cart in that space.
Standard chair seat height is.
Standard windows are less expensive and are readily available from a number of manufacturers.
I have found that a finished height of 19 inches off the finished floor is ideal for most window seats.
The normal height of a window seat is 18 to 20 inches depending on the presence of a cushion.
Then the line between all the seats when you see the room will be the same.
Get free shipping on qualified bay windows and bow windows or buy online pick up in store today in the doors windows department.
Choosing a standard size window also takes advantage of current window space occupying all or less of it.
Benches intended to serve as daybeds or cozy curling up spots can be as high as you like.
Ideally the window should be a minimum of six inches above the bench.
Anyway to answer your question i d make it the 18 height with the cushions so put the bench lower.
Our favorite diy window seat illustration by gregory nemec.
Screw cabinets together through their sides and set on 2x4 framing to support and raise them to seat height.
Make it too shallow or deep and it can be uncomfortable.
The window seat depth from front to back is also important.
The preferred depth should fall somewhere between 17 and 22 inches.
Most cushions are 2 to 3 inches thick and affect the overall height of the seat.
A 10 to 20 inch high bench back with or without cushions provides a finished look further comfort and fills any wall space between the seat and window.
The most comfortable height for a window seat with cushion on is between 16 and 21 inches.
Start with two stock 15 inch high by 12 inch deep double door cabinets designed for use above a fridge the width depends on the size of your nook.
You can see from the drawing that a window seat is actually a short floating wall achored to 2x4 cleats on the wall.