Construction and Siting Issues   Advantages       +Standardized coloring, consistent color     +Initially more expensive, but longer product life means fewer replacements and less     maintenance     +Very impact resistant       Disadavtages       - May take more time to cut than wood     - Training workers for installation techniques     - Availability of product may be inconsistent or too specialized         King County's Plastic lumber specifications:   King County agencies purchase plastic lumber through term- contracts with local vendors. A. General:     1. The plastic lumber shall be new and of the latest model design of a company regularly     manufacturing such equipment.     2. Recycled Content: 75% minimum recycled content overall; 50% post-consumer material.     3. Appearance: The lumber shall be free of splinters. It generally shall be smooth to the touch,     with no discernable contaminants such as paper, foil, or wood.     4. Color: All lumber shall be colored either dark brown or redwood, and the color shall be     present throughout the material. The color of each piece shall be generally consistent with the     others.