Just how big a boat are ya any how?

Sea ark has models up to 24' with 96" floors. Think alweld and some others do as well.

Truth be told, take a 2072 and set it next to a 21' ranger or whatever and you will see real quick that an aluminum boat has many, many more square inches of floor space given the same length and beam. But once you get to 20', your really not gaining anything other than shear length

Wannabe...