In this episode, I designed and built a Craftsman-style fireplace mantel for a client in Colorado Springs . The mantel was made from hickory and stained to match some of the other millwork in the house. Summary Fireplace Mantel Design and Fabrication Building a Custom Fireplace Mantel to Match a Staircase Newel Post In my last project, I built a custom staircase with a handrail , and the client loved the newel post design so much that they asked me to create a matching fireplace mantel. Today, I’m walking you through the process of building this mantel, from selecting the wood to the final installation. Selecting and Preparing the Wood I started by rough-ripping the stiles, sides, and inner panels to width before sending them through the planer to achieve the correct thicknesses. Since the mantel would feature mitered joints, I took extra care to match grain patterns and coloring so that the seams would appear seamless, almost as if they were cut from a single piece of wood. Mitering and Gluing the Joints The sides of the mantel were mitered to the front stiles for a clean, continuous look. I used blue tape as a hinge to ensure precision, folding the pieces together after applying glue. I left small gaps in the tape to monitor the miter alignment while clamping. Initially, I cut the stock slightly longer to allow for adjustments. Once the glue dried, I ripped the stiles and sides to their final width and length, using a stop block to ensure uniformity. Assembling the Legs with Dominos For joinery, I used the smallest Domino tenons available. If you don’t have a Domino joiner, a biscuit joiner or even small mortise-and-tenon joints would work—though the stock was only about 3/8″ thick, so precision was key. To make the process safer, I clamped long, narrow pieces in a vise while cutting the mortises. For smaller rails, I stacked them against each other for stability. Since end grain doesn’t hold glue as well, I applied adhesive to both the Dominos and the mortises for a strong bond. Building the Header and Adding Cleats The header was constructed similarly to the sides, with a mitered edge for a seamless appearance. I added plywood cleats to the legs to provide a nailing surface for attaching the mantel to the wall. Before final assembly, I did a mock-up to measure the filler strip that would support the cove molding. This strip was a simple 3-inch board with mitered returns that tucked back into the wall. Routing the Cove Molding For the cove molding, I first roughed out the profile with a dado blade at the table saw to reduce router strain and prevent tear-out. Then, I made finishing passes with the router for a clean edge. I used a wider board than necessary, routing profiles on both sides before cutting them free. I also used a round-over bit to create quarter-round molding for the base of the legs. Creating the Bullnose Shelf The top shelf featured a bullnose edge, matching the staircase nosing. I started by routing the profile on a test piece to set the correct table saw angle for waste removal. After ripping off the excess, I routed the final profile and mitered the edges for a seamless wrap-around effect. Installing the Mantel At the job site, I positioned the plywood cleats inside the legs to mark their placement on the wall. After securing them with molly bolts, I attached the inner panels from the inside of the legs before reattaching the assembly to the cleats. Next, I installed the header, ensuring a snug fit, followed by the filler strip and the top shelf—nailing it from below to hide fasteners. Finally, I added the cove molding and quarter-round trim, using a headless pin nailer to minimize visible holes. The Finished Fireplace Mantel The result is a beautifully crafted mantel that perfectly complements the staircase’s design. The attention to grain matching, tight miters, and seamless transitions makes it look like a single, cohesive piece. If you’re considering a similar project, remember that careful planning, precise joinery, and patience in selecting materials make all the difference. Whether you use a Domino, biscuits, or traditional mortise-and-tenon joints, the key is in the details.…