Really bad crafting recipe! (Easy fix!)

The crafting recipe for stairs has way to much material for the amount of stairs that you get!

 

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Here is what the fixed recipe would be:

 

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The reason this is fixed, is because you would still get 4 stairs! 3 blocks, take 1/4 out of every block, and you have enough materials for exactly 4 stairs! You wouldn't lose any wood!