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6'-8" is a module of 8". We use 8" because that is a standard module of brick and block construction, the oldest building technology. 6'-8" is generally required by building codes for egress purposes during emergency situations. Also for emergency personnel with helmets on.

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Q: Why is the standard door height six foot eight inches?
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Related questions

What is the standard width and height of a commercial door?

The standard width and height of a commercial door is three feet wide and six feet, eight inches tall. Commercial doors are larger than residential doors. Actually many commercial doors are 84" in height. Six feet eight is normal for a residential door.


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About 64 inches.


What is the correct door knob height on an 8 foot door?

36 inches is the standard doorknob height.


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The standard exterior door height is 80 inches. The standard exterior door width is 36 inches. The thickness of the door should be at least 3/4" thick.


What is the height and width of a standard double door?

Standard height for residential doors is 80 inches. Doors come in widths every two inches with most popular sizes of 30, 32 and 36 inches. (34 is special order door).


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A standard door is 80 inches so it would be 2 yards and 1.5 feet.


What is the height of a front door in meters?

standard height in u.s. is 6 foot 8 inches = 203.2 cm = 2.032 m


What height of a door?

Most residential doors are 6 foot 8 inches.


What is the height of the door?

8 feet


Is seventy seven and one quarter inches a standard door height?

Yes the door slab itself is 77 1/4 inches but with a jam and thresh hold is 80 inches


How many feet and inches are in 80 inches?

That is 6 feet, 8 inches. Also the height of a standard interior door.


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