Fasrteners for Permanent Wood foundations
  Fasteners used in foundations must be corrosion resistant.  

 

Fasteners

Fasteners used in foundation must be corrosion resistant. Type 304 or 316 staimless steel nails are recommended below grade for attaching treated plywood to treated lumber.

For most above-grade used, plywood may be attached with hot-dipped or hot-tumbled galvanized nails, or stainless steel.

Lumber to lumber fasteners above grade can generally be hot-dipped galvanized nails. Stainless steel type 304 or 316 nails generally required below grade, frost wall stud nailing, for all knee wall assemblies, and some wood floor connection.

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