How to Build a Fireplace Frame
Building your own fireplace frame is a great way to add a conversational area to your outdoor area. With the purchase of a few tools and building materials, building a fireplace frame can easily be accomplished over a long weekend.
What You'll Need
- Measuring tape
- Pencil
- Paper
- Cement
- Posthole digger
- Concrete screws
- Four post anchors
- Concrete tubes, 3 feet long by 8 inches wide
- Screwdriver
- 4x4 lumber
- Mortar
- Level
- Water
- Sand
- Brick
- Trowel
- Select a location for the fireplace.
- Plot out the plans for your fireplace. Allow 14 inches to both the width and the depth for the bricking and framing of the fireplace if not using an insert. If an insert will be used, adjust the measurement according to the instruction of the manufacturer.
- Dig four holes measuring 3 feet deep and 8 inches in circumference with your post hole digger.
- Mix your cement according to the instructions from the manufacturer.
- Insert the concrete tubes into the holes and fill with the cement.
- Allow the cement to set for 24 to 48 hours.
- Attach the post anchors to the top of each cement post.
- Measure the distance from the cement post’s top to the top of your fireplace. If using an insert, measure the distance from the top of the insert to the top of the cement post and add an additional 6 inches to the depth, width and height.
- Cut the lumber posts to the height measured in the previous step.
- Attach the cut posts to the post anchors using the concrete screws.
- Add triangular truss supports as required by your local building department.
- Attach a piece of plywood to the top of the posts if using a fireplace insert.
- Mix the mortar according to the instructions of the manufacturer.
- Apply mortar to the wooden posts.
- Press the bricks into the mortar.
- Place a level on the previously placed bricks and adjust the mortar accordingly.
- Continue adding mortar and layers of bricks to the inside and outside of each post. Ensure the placement is level.
- Use the previous process of laying bricks to create a frame and fireplace floor. Ensure everything is level.
- Continue adding layers of brick while leaving an opening for the front of the fireplace.
- Allow the mortar to dry for a minimum of 72 hours before building a fire in the newly built fireplace.