OKEE-TUKLO DISTRICT PINEWOOD DERBY STANDING RULES
 
1. LENGTH, WIDTH, HEIGHT, & CLEARANCE
a. Maximum overall width (including wheels, axles or other parts) shall not exceed 2-3/4″.
b. Minimum width between wheels shall be 1-3/4″ so the car will clear the center guide strip.
c. Maximum height shall not exceed 4-1/2″ in order to clear the race timer.
d. Minimum clearance [...]

The Official BSA Pinewood Derby Rules. These are the rules that are in the box of the Official Grand Prix Pinewood Derby Kits handed out by the scout leader.