Difference between Joist and Rafter

What is the difference between Joist and Rafter?

Joist as a noun is a piece of timber laid horizontally, or nearly so, to which the planks of the floor, or the laths or furring strips of a ceiling, are nailed; -- called, according to its position or use, binding joist, bridging joist, ceiling joist, trimming joist, etc. while Rafter as a noun is one of a series of sloped beams that extend from the ridge or hip to the downslope perimeter or eave, designed to support the roof deck and its associated loads.

Joist

Part of speech: noun

Definition: A piece of timber laid horizontally, or nearly so, to which the planks of the floor, or the laths or furring strips of a ceiling, are nailed; -- called, according to its position or use, binding joist, bridging joist, ceiling joist, trimming joist, etc.

Part of speech: verb

Definition: To fit or furnish with joists.

Rafter

Part of speech: noun

Definition: one of a series of sloped beams that extend from the ridge or hip to the downslope perimeter or eave, designed to support the roof deck and its associated loads.flock of turkeys

We hope you now know whether to use Joist or Rafter in your sentence.

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