Custom Fireplace Mantel

Custom Fireplace Mantel

Transform the look of your fireplace with a custom built mantel.


5 col

Transform your fireplace, and create a beautiful focal point in your room, with a custom mantel.

Materials
Tape measure
Masking tape
3/8-inch masonry bit
Drill
(4) 3-inch hollow wall anchors with metal dowels
T-bevel
Pencil
Skill saw
4- by 4- by 10-foot pinewood
2- by 6- by 10-foot pinewood
1- by 10- by 10-foot pinewood
3/8-inch wood bit
Philips head screw bit
Small sledgehammer and block of wood
3-inch woodscrews
Wood glue
2-inch nails
Nail gun
2-inch molding (10 feet long)
1-inch molding (10 feet long)
Wood putty
100-grit sandpaper
Damp rag
Stain

Instructions for Support System

  1. Decide the desired height of the mantle. Note there is a 12-inch minimum distance required between the fireplace and the bottom of the mantel
  2. To begin hanging the mantel, take the overall width of the fireplace and divide by five. Mark every 1/5 point
  3. Drill 3-inch pilot holes with a masonry bit at each one of your four marks

Tip: Measure 3 inches on your masonry bit and mark it with masking tape. This will show you exactly how far to drill in to the wall.

Registration

Become a member of P&G everyday and get exclusive offers!

Become a member
  1. To create the support system for the mantel, drill 3-inch hollow wall anchors into the four holes you just drilled. Then screw the metal dowels on to the end of the anchors

Instructions for Mantel Base

  1. If the fireplace meets the wall at an angle, measure the angle by placing the T-bevel in the angle where the fireplace meets the wall. Lock the bevel so it holds the angle, allowing you to transfer the angle to another piece of wood
  2. At one end of the 4- by 4- by 10-foot beam, transfer the angle by holding the T-bevel over one end of the wood, and trace a pencil along the T-bevel angle. At the end of this newly drawn and marked angle, measure out the width of your fireplace across the length of the 4- by 4- by 10-foot beam
  3. With the angle facing the same direction as the first angle, trace the T-bevel with a pencil again. Make sure that the angles both face the same side of the 4 by 4 beam. Cut the 4 by 4 beam along both angles with a skill saw
  4. Repeat steps two and three to measure and cut the 2- by 6- by 10-foot beam and the 1- by 10- by 10-foot beam
  5. Lay the 4 by 4 beam on the ground so the newly cut angles face up, or so the width of your fireplace is face up. Just as you did in step two, divide the overall width of the fireplace by five. Mark the same four marks on the beam. Make sure to center these marks across the 4-inch deep beam
  6. Apply tape to the 3/8-inch wood bit just as you did on the masonry bit in step three. Drill four, 3-inch deep holes into the beam
  7. Line the 4 by 4 beam up so the four holes in the beam line up with the four metal dowels sticking out of the fireplace. Use a small sledgehammer and block of wood to tap the 4 by 4 beam against the brick. Place the small block of wood against the beam and hammer the block to gently tap the beam into place. This prevents the sledgehammer from damaging the newly finished edge on the 4 by 4
  8. Drill two holes on each end of the beam, drilling through the 4 by 4 into the adjoining walls. Drive a 3-inch woodscrew into each of the four holes, securing the beam to the walls
  9. Apply a line of wood glue to the top of the 4 by 4 beam, and stack the 2 by 6 beam on top. Drive 3-inch woodscrews through the 2 by 6 into the 4 by 4 beam, every eight inches
  10. Apply a line of wood glue to the top of the 2 by 6 beam, and stack the 1 by 10 beam on top. Drive 2-inch nails into the top of the 1 by 10 with a nail gun, securing it in place

Instructions for Molding

  1. Measure the new width of the fireplace across the 4 by 4 beam, and write the number down. With your T-bevel, measure the angle at which the 4 by 4 beam meets the wall. Lock the T-bevel so it holds the new angle
  2. Trace the new T-bevel angle across one end of the 2- by 6- by 10-foot molding. Add the new width of the mantel, and transfer it to the molding. Trace the T-bevel again to create a second angle. Cut both angles with a skill saw
  3. Run wood glue on the back of the 2-inch molding, and press the molding into place against the 4 by 4 beam. Make sure to press the molding flush up to the bottom of the 2 by 6 beam. Secure the molding in place with a 2-inch nail and nail gun
  4. Repeat this process to apply the 1-inch molding to the side of the 2 by 6 beam. Make sure to press the molding flush up to the bottom of the 1 by 10 beam. Secure with 2-inch nails
  5. Fill nail holes in with wood putty. Lightly sand the mantel. Wipe the dust off the mantel with a damn rag, and let the putty dry
  6. Stain the mantel in place, and apply stain along the wood grain. Let it dry

Complete your personal information

Please fill in the information marked with an asterisk to proceed; if you want to get tailored offers and content, don't forget to fill in the optional fields.