I'm sure any pizza dough recipe would work but I find this dough holds up well to the grill.
1 3/4 Cup Warm Water
2 1/4 Tsp. Yeast
1/2 Tsp. Sugar
1/4 Tsp. Salt
1 Tbsp. Oil
2-3 Cups Flour
Mix first 5 ingredients together.
Add 2 cups of flour and mix.
Add extra flour only as needed.
You don't want sticky but you don't want dry either!
Let rise 15 minutes.
Separate into 4 portions.
Roll out each portion on a floured surface approx. 1/4 inch thick.
Oil the BBQ grill and heat to medium.
Place crusts on the BBQ and grill for 2-4 minutes on one side or until slightly browned.
Remove from heat.
Place toppings on grilled side.
Put them back on the grill until crust is browned and cheese is melting.
Note: Less is more on the BBQ. You can't do as many toppings as you can in the oven. Grate your cheese very finely. You need the cheese to start melting before the crust burns :)