The replica of Noah's ark shown above is 1/75 scale. For comparison purposes, both the railroad stockcar and model of the sailing ship Pinta (one of Columbus' ships) are also at the same 1/75 scale model size.
The full-size version of the railroad stockcar model shown in the picture is 44 feet long and has a capacity of 2,670 cubic ft. The ark's volume was 1,518,000 cubic ft., which is equal to 569 railroad stockcars. Strung together these stockcars would make a train five and one-half miles long!

Although no one knows exactly the length of the Biblical cubit used as a measurement by Noah, the above model is based upon the ratio of one cubit equaling 18 inches. If a larger cubit of 20 or 24 inches would have been used the ark model would have been proportionally larger.

Arnold Mendez presents seminars on the subject of the Genesis Flood and Early Man. He has studied the Genesis account and the creation versus evolution controversy for the last 25 years. He is a chemistry instructor at Texas A&M University in Corpus Christi and has both a Master and Bachelor of Science degree in Biology (minor Chemistry). His Noah's Ark & Early Man Seminars website has more details about the flood, early man, evolution, creation, radiometeric dating, biblical longevity and various other topics.

Related Study Materials
The Genesis Flood: Catastrophic Themes in the Bible and Science

The Size of Noah's Ark

The Wickedness of the Pre-Flood World

What about dinosaurs and the biblical record?