Other tools NBS offers a range of tools for specification and collaboration National BIM Library The most trusted BIM Library in the UK, certified to the internationally-recognised NBS BIM Object Standard Uniclass 2015 A dynamic and unified classification system for the construction industry covering all sectors Construction Information Service (CIS) A comprehensive online collection of construction related standards, regulations, technical advice and articles Plug-ins NBS provides a range of tools to help connect your CAD model to your specification model
Platform Resources Support Events About TheNBS.com Manufacturers Uniclass 2015 Get in touch

Platform

NBS Chorus Features and pricing Book a demonstration Sign in to NBS Chorus Other tools National BIM Library Uniclass 2015 Construction Information Service (CIS) Plug-ins

Resources

Knowledge Sample Specification Case studies Authors

Support

Training Downloads and updates

About

About NBS Newsroom

Platform

NBS Chorus Features and pricing Book a demonstration Sign in to NBS Chorus Other tools National BIM Library Uniclass 2015 Construction Information Service (CIS) Plug-ins

Resources

Knowledge Sample Specification Case studies Authors

Support

Training Downloads and updates

About

About NBS Newsroom
View all documents from this publisher

ANSI/SDI A250.4-2024 Test procedure and acceptance criteria for physical endurance for steel doors, frames and frame anchors

Publication Year

2024

Document Status

Withdrawn

Abstract

Standard method of testing the performance of a steel door mounted in a pressed steel or channel iron frame under accelerated field operating conditions.

Document History

Superseded by the January 29, 2026 edition. Approved July 8, 2024.

Publisher Information

Steel Door Institute

The Steel Door Institute produces quality and performance standards for steel doors and frames in the US.