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How to Build a Fireplace Hearth


by DoItYourself Staff

what you'll need

  • Tiles
  • Grout
  • Hammer
  • Nails
  • Tile Cutter
  • 2x4 Plywood or Wood
  • Wood Planks or MDF
  • Saw

A fireplace hearth is a very useful part of a fireplace because it protects your flooring from burns. Fireplace hearths can be raised and can create a great aesthetic look. Building a hearth is actually very simple and require fairly simple materials. You will also need to understand some basic skills to make the best hearth possible.

When building a hearth it's essential that you build it using materials which are not combustible. Spend time learning how to build your own fireplace hearth so that you can improve the appearance of the whole room.

Step 1 - Building Codes

You must read through your local building codes to find out exactly what you require. Different states will require different thicknesses of hearths. Normally the requirements will be dictate at least 1/2 an inch of non-combustible material around the fireplace.

Step 2 - Planning

Once you know the code requirements you can design your hearth so it is compliant. Design the size of the hearth to suit your requirements and then decide what type and quantity of materials are needed to build the hearth.

One of the easiest methods of creating a hearth is to use tile. However, don't simply rely on tiles; also consider stone, granite and various other materials to cover your hearth.

Step 3 - Building the Platform

The platform should be constructed out of either MDF (medium density fiberboard) or plywood. Wood can also be used but is normally more expensive. The frame should be constructed so it matches the required building guidelines. Ensure that the platform is strong and sturdy. If the platform isn't stable, the tiles may crack over time.

Step 4 - Cement Board

Add the cement board over the top of the frame you've just built, again keeping in mind all applicable building code. Depending on the state you live in, you may need to apply for a license showing that the hearth has been constructed safely and matches the standards. This would require the hearth to be examined by a professional at your cost.

Step 5 - Tiling

Start by tiling the hearth using ceramic tiles. You must carefully measure and cut the tiles to the correct size. This can be tricky and some tiles may break during cutting. This is why you should buy a few extra tiles just in case.

Step 6 - Grouting the Tiles

The tiles should then be grouted carefully using tile grout. Scrape this over the tiles and make sure it is pressed into all the joints until smooth.

Allow everything to dry overnight before lighting a fire and using your hearth. Also avoid standing on the hearth until everything is completely dry.

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