Importance

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Abstract

A stair tread pan includes a plurality of stair risers, each of the plurality of stair risers comprising a uniform depth and width, whereby the stair tread pan consistently satisfies code requirements. The stair tread pan further comprising predetermined assembly tolerances are less than approximately ½ inch for drainage of the stair tread pan in an exterior use. The stair tread pan comprises at least one tread nosing formed into the stair tread pan for yielding a uniform for reliable and durable tread nosing. The stair tread pan further comprising a poor stop at a top end of the stair tread pan for receiving poured concrete, thereby illuminating the need for tea-bars or other concrete containing structures for forming a top landing on the stair tread pan. The the stair tread maybe read a leap replaced without disturbing the structured integrity outside stair tread pan in a building environment.

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First Claim