Floatable FIAP Fish Grader has been made from impregnated wood. The gap widths of FIAP Fish Grader‘s grid can easily be adjusted. A lever mounted to the handle is thumb tripped. Pressing the lever up or down at respective notches will diagonally adjust FIAP Fish Grader. Accurate gap widths in between the grading slats is ensured. All metal parts mounted to FIAP Fish Grader are corrosion-resistant (aluminium and brass).