I just discovered 'moats' so next week I will dig a large ditch around my house and fill it with water, and I'm doing it to protect my toothbrush from communists

Learn the difference between personal and private property

you dug a moat to protect your "property" from the proletariat, i dug a moat to protect my home from my landlord. we are not the same

a good moat should be 3 spans of an oxen and too deep for an ox to ford. but your castellan should probably know this. are you looking for one?

must be wider then a horse can jump , otherwise the Tatars will get you

we're coming for that fucking toothbrush

Five feet deep and five feet across, and make sure you spit in it.

Communism is when no toothbrush

Im coming for your favorite toothbrush.

Gonna need some laser sharks in that moat

That depends, are we talking about a dry moat or a water castle moat?

For any moat, the total height from the top of the wall to the bottom of the most should be enough that the enemy cannot use a ladder to climb over the wall. This was easier to achieve before you could walk into a hardware store and come back with a 40' ladder.

The most itself must be deep enough that your attackers cannot simply walk across it if it is a water moat, and any moat should have difficult terrain at the bottom, concrete tetrapods are great. Just make sure the highest point of the terrain is still deeper than a person could stand in.

The width of the moat should be at least 1:1 with the height of the walls above the waterline, and the wall should extend smoothly from the top to the bottom of the moat, with nothing that could be used as a hand or foot hold.