How to build a wood stove floor hearth

Written by heide braley Google
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How to build a wood stove floor hearth
A wood stove is a good source of heat during cold winters. (Old Stove and Antique Chair image by bawinner from

The installation of a wood stove in your home does not have to be a complicated endeavour. Starting with the floor, the foundation or hearth that the stove sits on is a simple platform. It is designed for safety first to make sure there is no chance of a fire being started by spitting embers. You can decide how decorative you want it to be once you have met the basic fire safety requirements.

Skill level:

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Things you need

  • Brick/stone
  • 24-gauge steel plate
  • Tin snips
  • Construction adhesive
  • Measuring tape
  • Pencil/chalk
  • Wood trim
  • Electric drill
  • Wood screws, 3-inch

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  1. 1

    Measure out the area of the floor where the wood stove is to be installed. Plan on the width and depth of your stove plus 18 inches on all sides. This is the basic square you need to work from. Any additional hearth can be added to this, but not taken from this basic minimum. Mark out the area on the floor with a pencil or chalk line.

  2. 2

    Lay out the brick on its wide side, tightly together to fit into the square previously marked out on the floor. A space 5 by 6 feet will need approximately 450 bricks for the first level. Decrease the number of bricks necessary by leaving a 1/2-inch gap between the bricks and fill it with sand. Any type of rock can be used, provided that it is flat and at least 2 inches thick.

  3. 3

    Frame in the brick with two-by-fours, using 3-inch wood screws to anchor it to the floor, or masonry screws if working with a tile or stone floor. Pre-drill to keep the boards from splitting. Lay the first board on its side flat against the brick. Lay the second board flat on the floor on the outer edge of the first two-by-four. Remove a few bricks from the outer edge of the platform to attach the first board into the second board, by sinking a screw horizontally 1 inch up from the floor through the first board and into the second. Repeat every 12 inches around the perimeter.

  4. 4

    Lay a sheet of 24-gauge steel over the first layer of brick or stone. Trim the outside edges with tin snips to fit the square. Use construction adhesive to hold the metal to the bricks. Lift up the edge and place a 1-inch line every foot along the outer edge of bricks.

  5. 5

    Fit the second layer of bricks over the sheet metal. There should be a 2-inch lip around the perimeter from the framing done previously. Lay them tightly together to keep ashes from accumulating in the cracks. The platform is now ready for the wood stove.

Tips and warnings

  • Use mortar and grout with clay tile for a more finished look.

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