Build a Simple Fireplace with Stone

Outdoor fireplaces built with stone give a rustic look to any backyard. With careful planning, they are easy to build and if a source for rock is found can also be inexpensive.

The need for concrete or mortar is dependant upon how flat the stones are.

The stones in an outdoor fireplace need to be at least two inches thick and as flat as possible. Thicker stone is preferred for use at the base and lower levels. Length can be varied, as this will give the fireplace additional charm. A good general length is between twelve and thirty six inches. The width of the stone should be at least one foot across.

Begin this project by determining what size the fireplace will be. A good size to start is two foot by three foot. Lay out the footprint of the fireplace using landscape chalk. If this looks like an appropriate size, make additional lines one foot away from the footprint lines. If not, redraw the footprint either larger or smaller as needed.

The next step is to remove all sod and/or plants from the immediate area. Use the outside lines you have drawn with the chalk as a guide.

Once the area is clear with nothing remaining but clear dirt, redraw the fireplace footprint. Begin laying in the stones around the perimeter of the fireplace. Use the thicker, heavier stones as the base. Complete one row around the entire diameter, before beginning the next.

When the fireplace has reached the chosen height, you can decide if you wish to add a chimney. If a chimney is desired, you will need a sheet of ¾” steel plate that will cover approximately one third of the fireplace opening. Lay the steel plate over the back half of the fireplace, leaving a two inch gap from the inside of the stone to the edge of the plate.

Begin the chimney by stacking smaller stone across the steel plate, keeping in mind not to allow the stone to block the two inch flue area. Continue the stone around the back of the fireplace. Carefully add stone to the chimney until complete.

For added stability, concrete or mortar can be used between the layers of stone. Follow the instructions on the bag and be sure to allow curing time before using the fireplace.

An outdoor fireplace can be a wonderful addition to any backyard. A few simple sticks and a bag of marshmallows will bring a smile to both young and old as you sit around the fire.

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