How Long Did It Take
To Build the Ark?

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Noah and the Ark Series
Migration after Flood  -  Noah's Descendants
How Were Animals Fed?   -   How Big Was It?
Picture of Ark  -  How Many Animals?  -  MORE!
How long did it take Noah to build the ark? How old was Noah when he built it and when the flood occurred?

Before we tackle how long did it take Noah to construct the ark we should cover a little background information about this fascinating man and the incredible feat he accomplished. Noah, born in 2913 B.C., was 480 years old when God asked him to build a ship to save all the animals and his immediately family.

The book of Genesis reveals God wanted to bring a great flood because humans had set their hearts to do evil all of the time (Genesis 6). He gave man one hundred twenty years more to live when he commanded Noah about the ark.

In 2313 B.C., the year of the flood, Noah was six hundred years old (Genesis 9:29). He was a man of faith (Hebrews 11:5 - 7) who walked with God (meaning he obeyed Him and His commandments - see Genesis 6:9 and 1John 2:3 - 6, 5:2 - 3) and who would live a long life of 950 years. It was because he feared the Lord that God chose him to build an ark (ship) to save animals from extinction.


Building the Ark
Building of the Ark
Kaspar the Elder Memberger, 1588

The Biggest Vessel

The ark not only was it the biggest ship built up to that time, it would be the largest sailing vessel man would construct until around the 1800's A.D.! It displaced (at a draught of 15 cubits) more than 22,000 tons of water. God told Noah to make a ship that would have over 101,000 square feet (9,383 square meters) of floor space. Because it was built on the 1:6 ratio (50 cubits: 300 cubits) modern naval architecture reveals is the most stable for ocean going vessels, it would be almost impossible to turn the ship over!

How Long Did It Take?

In regard to the length of time it took to complete the ark Noah worked on, there is nowhere in Scripture that supports it taking one hundred and twenty years to construct it. This span of time was the period God allowed mankind to live from the time He made His judgment until the flood.

Now it came to pass, when men began to multiply on the face of the earth, and daughters were born to them, that the sons of God saw the daughters of men, that they were beautiful; and they took wives for themselves of all whom they chose.

And the Lord said, 'My Spirit shall not strive with man forever, for he is indeed flesh; yet his days shall be one hundred and twenty years' (Genesis 6:1 - 3, NKJV throughout).

God set a specific time limit before any penalty would occur in order to give humans a chance to repent. This principle is used repeatedly, such as when Nineveh was given a period to repent before any judgment was rendered (Jonah 3:9 - 10). This time span allowed the ways of righteousness to be preached (2Peter 2:5), like what Noah did, while work was ongoing.

A Mystery

Research shows there is no evidence regarding the duration it took Noah to build and complete the ark. Even extra-Biblical references, such as the book of Jubilees and the historian Josephus, were silent on the subject. One hundred and twenty years to construct the ship seems extremely excessive, even with the many factors taken into consideration. In the end, it does not matter how long it took to produce the ark. What is important is that we learn the spiritual lesson derived from it.

"Now all these things happened to them (like those who lived at the time of Noah) as examples, and they were written for our admonition, on whom the ends of the ages are come" (1Corinthians 10:11).

Thank you for your question regarding how long it took Noah to build the ark.

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Are There Animals in Heaven?

Noah's Ark
The Life of Noah
Why Was There No Rain before Flood?
Why Did Man Live Longer before Flood?
Did Cain's Descendants Survive the Flood?
When Did the Continents Separate?
How Many Died in the Flood?
Picture of Inside Noah's Ark!
Why Did Noah Curse Canaan?
How Violent Was It before the Flood?
Where is Mount Ararat Located?
How Did Noah Walk with God?


Quotes in this series taken from
Holy Bible in Its Original Order
unless noted.