Queen Mary 2 (IMO: 9241061) is a Cruise Ship , operated by Cunard and sailing under the flag of Bermuda. She is built in 2003 and her length is 345 meters, gross tonnage is 148528 GT and maximum speed is 25 knots. Queen Mary 2 is operated by crew of 1253 people and the number of passengers varies from 2726 to 3271 people.
With the size parameters of the Ark from the "Bible", it would be about a third of the size, so a base of 49,509 GT. Then factor in the lesser weight of wood compared to steel, but add in the gross weight of at least 5 million animals and the food and water for them all.
"Wood is not stiff enough. Wood bends in the wind, which is a great attribute for trees, but terrible news for boat-builders. Wood is not long enough. Due to the maximum height of trees, the maximum practical length of a single wooden beam is about say 80 metres.
OK, so if you try to build a boat longer than 80 metres, you will necessarily have seams between the beams both lengthwise and crosswise. When the boat is in the water and encounters waves, it will experience hogging and sagging forces. The wooden beams will bend, and the seams will open up, letting water in, and sinking the boat.
Perhaps the most famous engineer Isambard Kingdom Brunel ran into this problem when designing the SS Great Britain, so he adopted an iron hull design.
The chief advantage of the iron hull was its much greater structural strength. The practical limit on the length of a wooden-hulled ship is about 300 feet, after which hogging—the flexing of the hull as waves pass beneath it—become too great. Iron hulls are far less subject to hogging, so that the potential size of an iron-hulled ship is much greater.
Ships longer than about 100 metres have ever since been built with hulls of metal.
NOTE: yes, this issue with the lack of strength and stiffness of wood does mean that the Biblical Ark at an alleged length of 137 metres is totally impossible."