While the upper and lower facesheets 35, 40, are fabricated using a hand-layup process, the core 45 including the facesheets 35, 40 can alternatively be fabricated by other methods such as pultrusion, resin transfer molding (RTM), vacuum curing and filament winding and other methods known to one of skill in the art of composite fabrication, which, therefore, are not discussed in detail herein.