This storage unit has been tested for office use and meets the requirements for durability and stability set forth in the following standards: EN 16121:Level 2 (Severe), ANSI/BIFMA x5.9.This furniture must be fixed to the wall with the enclosed wall fastener.WARNING! Tipping hazard – this product must be securely anchored. Use suitable screws and plugs for your home. If you are uncertain, seek professional advice.