Apartment building, Building Code (wall thickness, fire safety)

crumpet19

Platinum Member
Feb 10, 2002
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Basically, I'm living in a building that was built in 1967.
Supposedly there is a ~4" thick concrete wall surrounding each unit (between the levels and on all adjoining sides, at least according to landlord and building maintenance.
I would like to find out the building codes for Oklahoma... anything that might tell me how thick of a wall there is separating the units.

If anyone can help, please do.
Thanks