ANSI/SDI A250.4 Has Been Updated

June 7, 2011 WESTLAKE, Ohio ―ANSI/SDI standards undergo an extensive audit by the Steel Door Institute’s Technical Committee every five years to ensure they are still accurate and relevant. The latest standard to undergo this review was ANSI/SDI A250.4, which provides test procedures and acceptance criteria for physical endurance for steel doors, frames and frame anchors.

A majority of the changes to ANSI/SDI A250.4 were to reduce the specification of hardware reinforcings.

Terminology was also updated to reflect language currently used in the field, such as changing “pressed steel” to “hollow metal” and “mutes” to “silencers”.

Jeff Wherry, Managing Director of SDI, said, “The cycle test and twist test specified in ANSI/SDI A250.4 have provided manufacturers with a consistent method for measuring hollow metal door durability for over 30 years. The latest version has undergone ANSI’s 17-point inspection process, so design professionals can be assured the standard is up-to-date.”