The Extra Rack kit allows you to have up to 12 racks in a standard 4 rack Bradley Smoker or 16 racks in a 6 rack Bradley Smoker.

The only caveat is to use all 12 or 16 racks you have to remove or move the door thermometer as it ends up right in line with the 4th rack from the top.

Please note that any modification to a standard smoker may void your warranty claims, please contact the manufacturer for specifics.