The Biblical ark dimensions were 300x50x30 cubits (Genesis 6:15) which is about 140x23x13.5 metres or 459x75x44 feet, so its volume was 43,500 m3 (cubic metres) or 1.54 million cubic feet.

These dimensions provided optimal stability and would allow it to list up to 60 degrees and still right itself.

The Gilgamesh ark dimensions were 120L x120B x 120D cubits.

This would topple very easily.

Assuming what they told me in school was right, then the Gilgamesh ark was definitely a CUBE.

Blacknad.