I am planning to make a concrete pad for a BBQ/cooking area in my backyard for my mom and dad. Do I need rebar for extra strength/durability/structural integrity if the pad is small to medium size...? What if its a pretty large pad...? I am planning on making a concrete pad...oh say about...4 inches thick and 6' wide by 8' length. Do I need the rebar or can I forgo the rebar...? Is there an alternative to rebar...? How thin of a concrete slab can most people get away with if 4" is too thick (cost wise)...? Is it possible to make a 2" thick slab with no rebar and still have it be strong/durable enough for outdoor use...?