Pinewood Derby Rules

Some important restrictions about Pack 1148's derby:

Track Information

The following is for informational purposes only.  The measurements are approximate.   The standard wheel placement with the BSA Pinewood Derby Kit will clear just fine.

The picture below is a cross-section of the track.   The car's wheels sit on the outsides of the two rails sticking up.

The center rail height is about 1/4 inch.  The width is about 1 and 5/8 inches wide.   Typical pinewood derby stick on or screw on base plate weights are generally fine with standard wheel and axel placement. 

Official Pinewood Derby Rules


Open to all Pack 1148 Cub Scouts, siblings and children. Scouts from other packs may participate with special permission. The cars must be newly constructed from an Official BSA Pinewood Derby kit. Participants should have an active role in constructing the car.

Inspection: Cars will be inspected during registration for compliance to the specifications set forth below and verification will be determined only at inspection and not at the track.  

While wheels will be verified as BSA wheels during inspection, non-compliant wheels can and will be flagged at any time during the derby if or when identified. 


Cars will be impounded when registered. After being impounded, repairs will be limited to replacement of axles/wheels that are broken/lost during the race. 


BODY: The body in the Official BSA Pinewood Derby Kit must be used. No prefabricated car kits! Bodies of other materials will be grounds for disqualification. The body may be shaped, hollowed out, or built up from the original block, as long as it meets all other specifications. Any additions to the original body, i.e. steering wheels, drivers, decals, paint, weights, etc., must be firmly attached.

WIDTH: The car width at the wheels may not be modified; it must be the same as the original kit. Width must not exceed 2 3/4".

LENGTH: Overall length may not exceed 7". WHEELBASE: Wheelbase may not be modified; it must be the same as the official


HEIGHT:  The car must fit under the finish gate.  Maximum height is 5.75".

WHEELS: Wheels and axles must be as furnished in the official kit. NO washers, bushings, bearings or springs are allowed. Wheels may be sanded to remove the flashing only. NO reductions in width or diameter, or changes in shape are allowed. The car must have 4 wheels at inspection. 

It is the Pack’s intention to create a fair and fun environment for all scouts with as level a playing field as possible and keeping the focus on craftsmanship and fun.  If at any time during the derby wheels are determined to not be official BSA wheels or are otherwise non-compliant the rules committee will meet to determine the proper course of action.   If, at the discretion of the rules committee, the car has not raced and there is sufficient time, wheel changes may be made by the scout and re-registered.  If the car has raced in heats with non-compliant wheels the times for the car may be removed and the car may not be able to qualify for a speed trophy.  The car will still be eligible for the other awards including best in show.  The rules committee determination will be final.   

WEIGHT: The weight of the race-ready car must not exceed five (5.00) ounces as measured on the official scales.

UNACCEPTABLE CONSTRUCTION: The following may NOT be used in conjunction with the wheels or axles: hubcaps, washers, inserts, sleeves, bearings, or riding on springs. The following may NOT be incorporated into the construction of the car: protrusions (i.e. wires) that extend beyond the front of the car; cuts that allow the front of the car to extend beyond the starting line, such as a split front; or additions to the car that cause the cars front wooden edge to not be in contact with the starting pin.

LUBRICANTS: Only dry lubricants may be used.