Grade A ---Typically this is a recycled pallet repaired close to its original condition.
Broken stringers may have been replaced or repaired with metal plates. All damaged deck boards are replaced. This is a fairly clean pallet that is structurally sound.
Grade B ---Typically this is a used pallet, which has had stringer (runner) damage and has been repaired by attaching an
additional runner along side the damaged one. This is commonly referred to as a companion stringer, block stringer and double stringer.
The "B" grade pallets usually have one or more repaired stringers.
The deck configuration on the "B" grade pallet is not always consistent because these pallets have been repaired many times.