Out-sourced Paper Shredding is More Cost Effective Than In-house Shredding.
It is very expensive to have your own employees shred paper with portable office shredders. If your people are shredding for as little as a combined two hours PER MONTH, it is likely that hiring a professional document destruction company will be a less expensive alternative.
If you are shredding less than two hours per month, you may want to consider storing the paper and having the paper shredded once per year by a professional document destruction company.