flat bed ? thats a cool idea want to see it when its done don't do aluminum go with stainless it last longer and holds the shine longer and for a pice as big as you need the cost wont be that much more just my thought but the weight might be more

__________________
Jay's
09 XL reg cab
L4 2.3 , 40 series flowmaster , tinted windows 5% back 35% sides ,muffler removed from air box mod ,and ac on off switch mod , blinker mod, avs window vent shades
coming soon! k&n drop in/fiberglass bed cover/bed sprayed liner