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11-06-05, 01:31 PM   #1  

Can somebody please tell me what a wood joist is

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11-06-05, 04:53 PM   #2  
Welcome to the forums

A wood joist is the lumber that supports the floor. They are typically 2x8, 2 x10 or 2x12. The longer the span or heavier the load means a bigger size. On multiple floors the floor joist will also be the ceiling rafter for the floor below.

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