Simpson Strong-Tie InstallationPhoto

Simpson Strong-Tie’s CPTZ post tie is a 10-gauge knife plate on a rectangular base that keeps posts the code-required 1 inch above the concrete. Cut a vertical kerf in the bottom of a post, slip it over the plate, and secure it with the supplied galvanized pin. The base can be cast-in-place or anchored to an existing slab and is available in 4x4, 4x6, and 4x8 versions for about $20, $40, and $60. Simpson Strong-Tie, 800.999.5099,

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