You asked: How deep should a fire pit be dug?

Excavate to a depth of six to 12 inches, depending on how deep you want your fire base. Be sure to create a level base in your fire pit. Afterwards, excavate a smaller, three- to four-inch-deep circle inside the fire pit. This area should equal roughly one-third the fire pit diameter.

Does a fire pit need drainage?

Every fire pit needs air flow to provide oxygen to flames. For a permanent fire pit, consider adding a 3- to 4-inch steel drain pipe to the floor of your pit. A typical shower drain cover works well to keep debris out of the drain pipe. A 12-inch-deep gravel layer can provide sufficient drainage for many DIY fire pits.

Should I put stone in the bottom of my fire pit?

Sandstone, river rocks, natural rocks, and gravel are not ideal fill for fire pits because they are more likely to crack or explode under high heat. No matter what type of fill you use, make sure the fill is dry when you light the fire. … Even wet lava rock can explode.

Can I just dig a hole for a fire pit?

For instance, if you just want a basic fire pit, dig about 6 to 8 inches down and call it good. You can go deeper if you want, but keep in mind that you don’t want the hole so deep you can’t enjoy watching the fire. … These roots can, and do, re-ignite and turn into fires.

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Will concrete explode in a fire pit?

A fire pit is a wonderful addition to an overall outdoor living space design. … You may not know this, but concrete blocks can actually explode if they get too hot, making your fire pit a serious danger.

Fire safety