NAAMM MBG 531 : 2017

Standard Marking System
Standard Gratings
Minimum Sizes and Tolerances of Bars
Load Tables/Inch-Pound units
Load Tables/Sl units
Anchoring Details
Installation Notes; Panel Dimensions
Installation Clearances
Operation and Maintenance Instructions
Standard Tread Nosings
Tread Dimensions and Details
Manufacturing Tolerances
Welding Standards
Grating Uses
Information to be Provided when Ordering
Standard Specifications
Code of Standard Practice
Glossary of Terms

Defines architects and engineers with current technical data on bar gratings and stair treads of steel, stainless steel, and aluminum and also contained is based on sound engineering principles and reflects practices recommended by leading manufacturers in the industry.