ANSI/AWI SMA 0643-2021.

1.0 Purpose

a) Provide standards and tolerances for the quality fabrication and field installation of wood stair, handrail, and guard systems (henceforth referred to as “Product”).

b) Establish minimum aesthetic and performance requirements intended to provide a well-defined degree of control over a project’s quality of materials, and workmanship, for the manufacture of wood stair, handrail, and guard systems.

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