Construction Class Descriptions

AIR provides the following categories of construction class codes.

Touchstone applies non-engineered building damage distributions to the following construction classes regardless of occupancy class, including the industrial facility (400-series) occupancy classes: 101, 102, 103, 104, 111, 112, 113, 114, 115, 173, 174, 178, 179, 261. This applies to the AIR Earthquake Model for Japan and to the AIR Earthquake Model for Canada.

Code Range	Category
100	Unknown construction
101-108	Wood construction
111-121	Masonry construction
131-140	Concrete construction
151-160	Steel construction
161-179	Japan composite construction
181-187	Special construction
191-194	Mobile home construction
201-203, 2010-2031	Bridge construction
204-206	Pavement construction
211-212	Dam construction
213-215, 2131-2152	Tunnel construction
221-226, 2210-2263	Storage tank construction
227-228, 2270-2286	Pipeline construction
231-233	Chimney construction
234-238	Tower construction
241-247	Equipment construction
250-260	Miscellaneous construction
261-263	Automobile construction
265-267	Marine craft construction
270-296	Marine cargo construction
800-813	Offshore asset construction

Touchstone also supports non-AIR construction and occupancy class codes, although AIR always recommends translating non-AIR codes to AIR codes wherever possible before importing your data. For more information, see Non-AIR Construction Class Codes and Non-AIR Occupancy Class Codes.

Touchstone 7.0 Updated September 03, 2020