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Proposed American National Standard:  

AWI  SMA 0643 - Stairs, Handrails and Guard Systems

The Architectural Woodwork Institute (AWI) and Stairbuilders and Manufacturers Association (SMA) have collaborated to develop the proposed AWI SMA 0643 – Wood Stair, Handrail, and Guard Systems standard. The standard differentiates between structural and aesthetic requirements for stair systems, ensuring that industry professionals can tailor the product to their specific needs. The AWI SMA 0643 – Wood Stair, Handrail, and Guard Systems standard includes a separate installation section, to be used by stair system installers in the field.


AWI SMA 0643 - Wood Stair, Handrail, and Guard Systems provides standards and tolerances for the quality fabrication and field installation of wood stair, handrail, and guard systems. Further, it establishes minimum aesthetic and performance requirements intended to provide a well-defined degree of control over a project's quality of materials, workmanship, and/or fabrication.


PUBLIC COMMENT: January 31 - March 16, 2020

The standard draft is available for public comment effective January 31 through March 16, 2020.  

STANDARD DRAFT:  Download Available Here

The AWI Public Comment Form is also available, below. Commentary submitted regarding the AWI SMA 0643 - Wood Stair, Handrail, and Guard Systems draft must be submitted on these forms in accordance with AWI’s policies and procedures, ensuring compliance with the requirements of the American National Standards Institute (ANSI). Commentary on the standard submitted outside of this format will not be considered by the AWI Technical Committee or the SMA Quality Standards Committee.



Individuals and organizations that wish to participate in the upcoming canvass must complete the canvass registration, regardless of whether the individual/organization was a participant in any previous canvass process. 

CANVASS REGISTRATION:  Form Available Here  

For additional information, contact Cheri Dermyre at or Terra Erb at

The Architectural Woodwork Institute has produced and collaborated on the development of standards in accordance with its mission from its founding in 1953 to the present day.

Stairbuilders and Manufacturers Association was formed in 1988 to insure the growth and prosperity of the group’s industry and craft. SMA Mission is: Building the greatest resource of knowledge and tools contributing to the success of our members and the stair industry.

Founded in 1918, the American National Standards Institute (ANSI) is a private non-profit organization that administers and coordinates the U.S. voluntary standardization and conformity assessment system.

Stairbuilders and Manufacturers Association
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