What is Live Load (LL) ?

Live Load is defined by ASCE 7-10 as "a load produced by the use and occupancy of the building or other structure that does not include construction or environmental loads such as wind load, snow load, rain load, earthquake load, flood load, or dead load. (Please refer to Dead Load article for clear distinction of live versus dead loading.) 

As a home owner it is important to understand Live Loads, as they may affect floor performance. For one and two family (residential) homes, only two classifications of live loading are used for floors. They are sleeping rooms and rooms other than sleeping room. This loading is used to determine what materials may be needed to construct the home. The loading comes from the table shown below, which is found in the International Residential Code (IRC), Chapter 3:

For more information on the IRC click on the link

International Residential Code for One- and Two-Family Dwellings




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