Do you require your equipment to be locked away or so no one can see what you have on your shelf? Why not add a locking door front kit to your shelf. This will add security and organization to any shelf. All doors are constructed from aluminum with double returned flanges on three sides for a smooth front and a superior rigidity. In combination with a shelf back and a shelf blocker, you can create a lockable compartment in any length of shelf. It includes all necessary hardware. Depending on level of trim on your vehicle, modifications may be required.