Structural · S-FGP5E

Typical Sump Pit in Slab on Grade

Materials

Elements

Floors / Slabs Reinforcing Roof / Floor Openings

About this detail

A recessed sump pit is formed within a concrete slab on grade. The assembly rests on a concrete leveling pad installed by the contractor below the pit invert. Slabs on grade feature continuous reinforcing sized and spaced to match structural drawings, supplemented by additional trim reinforcing placed around the pit opening. A manufacturer-supplied floor box integrates into the pit perimeter using adjustable leveling rods and mounting brackets. Proper slab thickness and subgrade preparation are maintained throughout the depression.

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