Now, the moment you've been waiting for: the step-by-step installation. I did my entire fireplace in 6 hours (including a lunch break and a mid-project dance party to my 2000s pop playlist). Here's how it went down:
Step 1: Prep Your Fireplace (No Sledgehammers Allowed)
First, clean your existing fireplace. Scrub off soot, dust, and any loose mortar or paint. If there are big cracks, fill them with a small amount of the heat-resistant adhesive (let it dry overnight). My fireplace had a few chipped bricks, so I patched those first—it took 10 minutes and made a huge difference in how the panels stuck.
Pro tip: Turn off your fireplace and let it cool completely before starting. You don't want to accidentally melt the adhesive (or your fingers).
Step 2: Measure Twice, Cut Once (Yes, It's a Cliché for a Reason)
Use the measuring guide to mark your panels. I laid mine out on the floor first, traced the outline of my fireplace, and scored the panels with the included tool. Then, I snapped them along the score line—just like breaking a chocolate bar (but less delicious). The
MCM Big Slab Board Series
panels are so easy to cut that I even experimented with a curved edge for the mantel. Spoiler: It worked!
Step 3: Stick 'Em On (The Satisfying Part)
Apply the adhesive to the back of the panels in a zigzag pattern (the kit instructions show you exactly how much—no guesswork). Then, press the panel firmly against the fireplace and use the level to make sure it's straight. Tap gently with the rubber mallet to set it in place. Repeat with the remaining panels. The adhesive dries quickly, but it's still repositionable for about 10 minutes—so if you mess up, you can adjust. Phew.
Step 4: Add Trim and Seal (The "Polished" Finish)
Once the base panels are up, apply the
Flexible Stone
trim pieces. These stick on the same way as the panels, but their flexibility means you can wrap them around corners without cracking. I added the Rust Square Line Stone trim around the firebox and a thin strip along the mantel for extra flair. Finally, apply the sealant with a foam brush, let it dry for 24 hours, and… done! Your fireplace is ready for its close-up.
Was it perfect? Almost. I had a tiny gap between two panels, but a little extra sealant fixed it right up. The best part? No dust, no noise, and by Sunday evening, I was sitting in front of my "new" fireplace with a cup of tea, wondering why I didn't do this sooner.