March 8, 2024

NRMCA Publishes Standard for Designing Above Grade Walls

Alexandria, VA – March 8, 2024

NRMCA 100 Cover

The National Ready Mixed Concrete Association (NRMCA) has published the 2023 edition of NRMCA 100, Prescriptive Design of Exterior Concrete Walls for One- and Two-Family Dwellings. The publication was accepted as a standard by the American National Standards Institute (ANSI) on January 4, 2024.

NRMCA 100 provides a simplified approach to the design of concrete footings, foundation walls and above-grade walls, both load bearing and non-load bearing, intended primarily for use in detached one- and two-family dwellings. Originally developed by the Portland Cement Association, the standard benefits architects, engineers and designers. With the 2023 edition, NRMCA assumes responsibility for development and maintenance of the standard. This 2023 edition of NRMCA 100 coordinates with the design criteria of the ASCE/SEI 7-16, Minimum Design Loads for Buildings and Other Structures, and ACI 318-19, Building Code Requirements for Structural Concrete and Commentary.

“It has been a pleasure working with industry leaders in the development of NRMCA 100–2023, Prescriptive Design of Exterior Concrete Walls for One- and Two-Family Dwellings,” said  NRMCA 100 Committee Chair and  Chief Operating Officer for NileBuilt Corp. Michael Weber. “As residential builders are required to construct more resilient, energy efficient and sustainable homes, NRMCA’s leadership role in updating this standard provides the guidance required for transitioning from wood to concrete building systems.”

NRMCA Director, Codes and Standards, Julian Mills-Beale, PhD, added, “Ensuring the resilient design and construction of exterior concrete walls is vital as communities face the rising occurrence of extreme weather events. By supporting this standard, NRMCA is committed to guide our industry toward providing structurally safe one- and two-family dwellings for the buildings market.”

The report is available for download from NRMCA’s bookstore.

NRMCA’s ConcreteWorks 2024

Registration and Event Details Will Be Released in May