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YellaWood® brand products are treated with a micronized copper preservative for proven protection against rot, fungal decay and termite attack. The preservative used has been subjected to extensive field-testing and has proven its viability for long-term performance in some of the harshest environments in the world.


Above Ground – Fence
Applications: Fence pickets

Above Ground – Light Duty
AWPA Use Category: UC3B
Above Ground Applications: Balusters; Spindles; Handrails; Lattice; Decking (in certain applications)
Ground Contact Applications: Not allowed
Use when:
    - Easily replaced or maintained
    - Not critical to performance and safety of structure
    - Above six inches from the ground
    - Proper ventilation and drainage

Ground Contact – General Duty
AWPA Use Category: UC4A
Above Ground Applications: Beams; Joists; Ledger Boards; Decking
Ground Contact Applications: Step Stringers; Posts
Use when:
    - Difficult to replace or maintain
    - Critical to performance and safety of structure
    - Less than six inches from the ground
    - Poor ventilation and drainage
    - Exposure to frequent wetting (freshwater, swimming pools, hot tub or sprinkler system)
    - Prolonged contact with vegetation or leaf litter

Ground Contact – Heavy Duty
AWPA Use Category: UC4B
Above Ground Applications: None
Ground Contact Applications: Posts
Use when:
    - Difficult to replace or maintain
    - Supporting a permanent structure
    - Exposure to salt water
    - Extreme climates

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