Roof joist

- The rafters of a flat roof. Lumber used to support the roof sheeting and roof loads. Generally, 2 X 10's and 2 X 12's are used.
Found on http://www.homebuildingmanual.com/Glossary.htm

Roof Joist

The rafters of a flat roof. Lumber used to support the roof sheeting and roof loads. Generally, 2 X
Found on http://www.superglossary.com/Glossary/Business/Construction/
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