I think you already have a strong case for replacing the wooden pallets. If employees are regularly dealing with splinters, exposed nails, broken boards, and damaged products, the pallets are no longer just an inconvenience—they are becoming a safety and maintenance issue. Plastic pallets may cost more initially, but their longer lifespan, easier cleaning, and resistance to moisture could make them more economical over time.
I would suggest calculating the current costs of replacing damaged pallets, cleaning up debris, repairing damaged goods, and dealing with potential workplace injuries. Presenting those numbers to your boss may be more convincing than simply comparing the purchase prices.
Moisture control is also worth considering in any storage environment because damp materials and surfaces can create additional maintenance problems. I recently came across a company offering mold treatment kannapolis services, and their approach to identifying moisture sources and addressing the underlying cause seemed particularly useful.