4 feet
Measure the height, width and depth of your couch, as well as the armrest height and cushion height.
The standard abbreviation for height is ht.
An ottoman can vary in height. If it is part of a suite of furniture it is usually matched to the height of the sofa/couch/settee or armchair seats. This allows the resting of feet on it comfortably while seated, and allows it to be used as an additional seat. Armchairs and sofas vary in height usually within the range of 275-375mm (11-15")
The height of a standard buffet table should be 34" to 38" in height.
Should be the same as a standard counter height, 36".
the standard height is about 1980mm give or take
I think the standard height of a room is 9 ft
The standard height of a stair is typically around 7 inches.
The standard height of a step is typically around 7 inches.
The standard restaurant booth height to the seat is 30 inches. The height of the backrest varies and depends on the style that one chooses. There is no standard for this.
The standard height for deck railing is typically 36 inches.
The standard height of a bathtub is typically around 14 to 17 inches.