Is there a particular reason why most prison doors’ bars are vertical?

Question

I would assume horizontal bars would make it stronger because they will have to be shorter (assuming normal door proportions)

EDIT: I mean cell doors

EDIT 2: Ok so its a combo of reasons like making it harder to punch thru the bars, exchange goods, use weight to bend the bars, and no climbing to prevent WWE scenarios. Aight thanks guys

In: Other

Answer 1

You can climb horizontal bars but not vertical. So it’s a standard security practice in taking that tool away from prisoners