I came to this forum looking for the same answer, as none of the answers below worked for me, I manually tried each number until I found the right one. I thought I would share.
What works for me is:
/Fill ~ ~ ~ ~ ~ ~ stone_slab 14
Note: I'm on bedrock, no idea if it's the same in java.
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I came to this forum looking for the same answer, as none of the answers below worked for me, I manually tried each number until I found the right one. I thought I would share.
What works for me is:
/Fill ~ ~ ~ ~ ~ ~ stone_slab 14
Note: I'm on bedrock, no idea if it's the same in java.