What context can I use each word in?
Learn when and how to use these words with these examples!
joist
Example
The carpenter installed the joists to support the second-floor deck. [joists: noun]
Example
We need to reinforce the joists in the attic to prevent sagging. [joists: plural noun]
rafter
Example
The roofer replaced the damaged rafters on the old house. [rafter: noun]
Example
The architect designed the roof with exposed rafters for a rustic look. [rafters: plural noun]
Good things to know
Which word is more common?
Joist is more commonly used than rafter in everyday language. Joist is a versatile term that covers a wide range of contexts, while rafter is more specific to roofing and construction.
What’s the difference in the tone of formality between joist and rafter?
Both joist and rafter are technical terms used in construction and engineering. Therefore, they are more formal and less likely to be used in casual conversation.
