Hard rocks like granite marble or slate are much denser and therefore less likely to absorb water and explode when exposed to heat.
Best bricks to use for a fire pit.
Flagstone and crushed stone are ideal materials for the fire pit cap and the stones in the center of the pit respectively.
You also need a flue lining to fit within your concrete blocks.
Other rocks that are safe to use around and in your fire pit include fire rate brick lava glass lava rocks and poured concrete.
Stone or regular brick can crack under high heat.
Make sure there are no.
Home centers and brickyards carry a large variety of brick.
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Lining a fire pit with fire brick also known as refractory brick will create a solid well built pit that will stand up to blazing fires for many years.
Select the location for the fire pit making sure it s away from flammable structures such as houses sheds and garages.
We used sw severe weathering face brick also called common or building brick to line the outside circle fire pit walls.
This material is exactly what it sounds like brick designed for use with fire.
If your climate doesn t include freeze thaw cycles you can use mw moderate weathering building brick.
Line the fire pit with fire brick.
Add beads of construction adhesive to the bottom layer to bond everything in place.
This is one area where you can use lava rocks for fire pit safety.
How to build a fire pit with standard bricks.
Place the metal fire pit bowl on the ground in the selected location as a general guide.