ANSI-ASC 14.9:2019
Current
The latest, up-to-date edition.
Disappearing Attic Stairways
Hardcopy
English
04-03-2019
This standard prescribes rules concerning the safe design, construction, testing, care, installation and use of permanently installed metal or wood, disappearing attic stairways of various types designed to be used for access to upper levels such as attics. Household units with duty ratings of 250, 300 and 350 lbs., or commercial units with a rating of 500 lbs.
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