Measure the fireplace opening and surrounding wall area
Choose the mantel style, material, and dimensions
Gather tools and materials
Locate wall studs and check for obstructions
Mark the mantel height and placement on the wall
Cut the mantel shelf and support pieces to size
Build or prepare the mantel frame or surround
Sand all wood surfaces smooth
Apply stain, paint, or finish before installation
Install mounting cleats or brackets into wall studs
Attach the mantel support structure securely
Level the mantel shelf and fasten it in place
Fill holes and seams with wood filler or caulk
Touch up paint or finish as needed
Inspect for stability and proper clearance from the firebox