Thomas Flat Deck Fish 5'7 Surfboard - Futures5'7" x 20 x 2 3 8 31. 6L The Flat Deck Fish is as its name suggests, a Fish with a flat deck. The flat deck allows for more volume under the chest, which means more paddle power on boards of shorter length. This design has been road tested in everything from big point breaks to grovely shoreys its more versatile in the junk than the classic Keel fish, and more adept in the big stuff than the Mod Fish. With respect to our other designs, it sits between