So now were going to believe "according to building instructions on a recently discovered, 4,000-year-old cuneiform clay tablet" that Noah's Ark was "round" RATHER than the detailed instructions given to Noah found in the inspired account of the Bible as to its size, shape, design for light and ventilation, and materials to be used for its construction?—Gen 6:14-16.
Design and Size. The ark (Heb., te·vah′; Gr., ki·bo·tos′) was a rectangular chestlike vessel having square corners and a flat bottom. It needed no rounded bottom or sharp bow to cut rapidly through the water; it required no steering; its only functions were to be watertight and to stay afloat. A vessel so shaped is very stable, cannot be easily capsized, and contains about one third more storage space than ships of conventional design. There was a door provided in the side of the ark for loading and unloading the cargo.
In size the ark was 300 cubits long, 50 cubits wide, and 30 cubits high. Conservatively calculating the cubit as 44.5 cm (17.5 in.) (some think the ancient cubit was nearer 56 or 61 cm), the ark measured 133.5 m by 22.3 m by 13.4 m (437 ft 6 in. × 72 ft 11 in. × 43 ft 9 in.), less than half the length of the ocean liner Queen Elizabeth 2. This proportion of length to width (6 to 1) is used by modern naval architects. This gave the ark approximately 40,000 cu m (1,400,000 cu ft) in gross volume. It is estimated that such a vessel would have a displacement nearly equal to that of the mighty 269-m (883 ft) Titanic of this 20th century. No cargo vessel of ancient times even slightly resembled the ark in its colossal size. Internally strengthened by adding two floors, the three decks thus provided gave a total of about 8,900 sq m (96,000 sq ft) of space.
“Make for yourself an ark out of wood of a resinous tree [literally, trees of gopher].” (Ge 6:14) This resinous wood here prescribed is thought by some to be cypress or a similar tree. In that part of the world what today is called cypress was in abundant supply; it was particularly favored for shipbuilding by the Phoenicians and by Alexander the Great, as it is even down to the present time; and it is especially resistant to water and decay. Doors and posts made of cypress are reported to have lasted 1,100 years. In addition, Noah was told not merely to caulk the seams but to “cover [the ark] inside and outside with tar.”