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, cca-c plywood may be attached with hot-dipped or hot-tumbled galvanized nails, or stainless steel.

Cca-c 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.

All other wood treatments, use stainless steel nails.

Stainless steel nails manufactured to conform to ASTM standards and are type 304 & 316.

Common (Smooth; Drive Screw; Ring Shank.)

Note: Panel foundations can be site built or made in a shop. When made so it cover up items that need inspection by the Building Inspector. Third Party Inspection may be required. (inspect for grade stamps, treatment stamps, stud spacing, insulation, nailing, dip of saw cuts, plywood requirments are some of the item that a third party inspection will note.

All Panel Wood Foundations must be designed and installed in accordance with:
All current Building Codes Standards

While wood foundations are easy to build, this is only true if one is building from an accurate well designed plan. When such a plan is incorrect, or if something is left out of the plan or absent, or if a design is made using a guide manual (these are not design manuals); major mistakes can be made during the construction process. These errors cause problems for the owner, builder, and the building department.

Woodbasement.com a service of Permanent Wood Foundation System (PWF), supported by Southern Pine lumber users affiliated with the training and installation of wood foundations.
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