When it comes to choosing a golden rod for your safe, size does matter. The general rule of thumb is that the bigger the better, but there are a few other factors to keep in mind as well.
For starters, the weight of your safe will play a role in how big of a golden rod you'll need. If you have a heavy safe, you'll need a correspondingly larger and heavier rod.
Another factor to consider is the type of lock on your safe. Some safes use combination locks, while others use keyed locks. If you have a keyed lock, you'll need to make sure the rod you choose is long enough to reach all the way into the keyhole.
And finally, think about where you're going to be mounting your golden rod. If you're mounting it on a wall, make sure you choose a rod that's long enough to extend beyond the depth of the wall so that it can properly protect your safe.
In short, there's no definitive answer when it comes to choosing the right size goldenrod for your safe - it depends on a variety of factors unique to your situation. But if in doubt, always err on the side of caution and go with a bigger size!