UC4C | Ground contact or fresh water Critical structural components | Exposed to all weather cycles, severe environments extreme decay potential | Decay fungi and insects with extreme potential for biodeterioration | Land & Freshwater piling, foundation piling, crossties & utility poles (severe decay areas) | Sawn Product | 0.60 | 0.60 | NL | 0.6 | NL | 0.31 | 0.31 | NL | NL | NL | NL |
Round piling | 0.80 | 0.80 | NL | 0.8 | NL | 0.41 | 0.41 | NL | NL | NL | NL | |||||
Posts | 0.60 | 0.60 | NL | NL | NL | 0.31 | 0.31 | NL | NL | NL | NL | |||||
UC 4A, B, & C | Ground Contact | Decay fungi and insects & high value products | Decay fungi and insects & high value products | All | Poles | 0.60 | 0.60 | NL | 0.6 | NL | 0.31 | 0.31 | NL | NL | NL | NL |
Crossties | NL | 0.40 | NL | NL | NL | NL | NL | NL | NL | NL | NL | |||||
UC5A | Salt or brackish water and adjacent mud zone Northern waters | Continuous marine exposure (salt water) | Salt water organisms | Piling, bulkheads, bracing | Sawn Product | 1.5 | 1.9 | NL | NL | NL | NL | NL | NL | NL | NL | NL |
Piles | 1.5 | 1.5 | NL | NL | NL | NL | NL | NL | NL | NL | NL | |||||
UC5B | Salt or brackish water and adjacent mud zone NJ to GA, south of SanFran | Continuous marine exposure (salt water) | Salt water organisms Including creosote tolerant Limnoria tripunctata | Piling, bulkheads, bracing | Sawn Product | 2.5 | 2.5 | NL | NL | NL | NL | NL | NL | NL | NL | NL |
Piles | 2.5 | 2.5 | NL | NL | NL | NL | NL | NL | NL | NL | NL | |||||
UC5C | Salt or brackish water and adjacent mud zone South of GA, Gulf Coast, Hawaii, and Puerto Rico | Continuous marine exposure (salt water) | Salt water organisms Including Martesia, Sphaeroma | Piling, bulkheads, bracing | Sawn Product | 2.5 | 2.5 | NL | NL | NL | NL | NL | NL | NL | NL | NL |
Piles | 2.5 | 2.5 | NL | NL | NL | NL | NL | NL | NL | NL | NL | |||||
UC 5A, B, & C | Marine Exposure | Continuous marine exposure (salt water) | Salt water organisms | All | Plywood | 2.5 | 2.5 | NL | NL | NL | NL | NL | NL | NL | NL | NL |