2-3lbs each.
What's the easiest way to cook a whole chicken? Cut it in half! We do the work for you so all you need to do is fire up the grill. Here's a great video on the easiest way to serve: Easy Serving Idea for Half Chicken
Our family no longer cooks "whole" chickens. We split them in half, no matter what. Grilling, roasting, smoking - it doesn't matter --- It is SO MUCH easier to do it with TWO halves instead of ONE whole.