Structural · S-KPNCG

Typical Depressed Slab On Grade Details

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The drawing details two conditions for depressed slabs on grade based on depression depth "D". For depths less than or equal to three inches, the slab transitions with a one-to-six slope, requiring eight inches minimum bottom flat width, twelve inches slope dimension, and typical slab reinforcement. For depths greater than three inches up to a maximum of twelve inches, the transition requires continuous number four top and bottom reinforcement, an eight-inch minimum flat width, a twenty-four-inch slope dimension, and typical slab reinforcement with matching size and spacing. Notes direct the builder to architectural and structural drawings for specific locations, depths, and edge conditions.

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