Unitary boat hull and methods of manufacture

A method of manufacturing a boat hull comprising:

• a. forming a first foam structure from at least a first piece of foam of a first density and a second piece of foam of a second density wherein the second density is greater than the first density, wherein one face of the first piece of foam is secured to a second face on the second piece of foam, and wherein the first piece of foam is positioned above the second piece of foam;
• b. cutting into said first foam structure one or more components and/or a shape;
• c. forming at least a second foam structure;
• d. adjoining the first foam structure to the at least second foam structure;
• and
• e. coating said adjoined foam structure with at least one layer of reinforcing fiber and resin securing said first piece of foam and said second piece of foam together.

A boat hull comprising:

• a. a foam core, said foam core comprising at least a first piece of foam and a second piece of foam;
• b. at least one alignment member positioned between said first piece of foam and said second piece of foam;
• c. a higher density foam being positioned below a lower density foam within said foam core;
• and
• d. at least one layer of fiber impregnated with resin, said at least one layer of fiber impregnated with resin suitable for covering the foam core.