Gas line sizing question for stove

[TCP]

Hey guys I have a question about gas piping for a stove. We ordered a new samsung stove and in the manual it says to buy a 1/2 in ID flex connection hose. At the big box store I only found 1/2 OD which would give me a smaller ID. They did also sell a larger 5/8 OD but the threads were 3/4. I understand I can reduce it to make it fit but figured I'd ask here first. Shes a big cooker and it could be possible that she would have all the burners on at the same time. Any advice would be appreciated!

 

[FullySprinklered]

Go big.

 

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[Dj2]

1/2" is too small, use 3/4" pipes.
If your local big store doesn't stock them, find them at a plumbing supply outlet.