MCM Big Slab Installation: Ando Cement Real Photos Step-by-Step Guide

There's something quietly powerful about a material that balances raw industrial edge with timeless elegance. That's the magic of Ando Cement MCM slabs—a product that doesn't just cover walls or floors, but transforms spaces into stories. If you've ever walked into a room and thought, "This feels intentional," chances are it had a surface that spoke to both durability and design. Ando Cement, part of the MCM Big Slab Board Series, does exactly that. Inspired by the legendary architect Tadao Ando's masterful use of concrete, these slabs marry the flexibility of MCM technology with the soul of handcrafted material. Let's dive into how to bring that same intentionality into your space, step by step.

Why Ando Cement MCM Big Slabs? Let's Start with the "Why"

Before we grab the trowel, let's talk about why Ando Cement stands out in the crowded world of building materials. MCM (Modified Composite Material) slabs are known for their flexibility—unlike rigid natural stone, these panels bend slightly, making installation over uneven surfaces a breeze. But Ando Cement takes it further. Available in light grey and dark grey, its texture is subtle: not too rough, not too smooth, with a matte finish that catches light in soft, shadowed ways. It's the kind of material that works in a minimalist living room, a boutique café, or even a home office that craves understated sophistication.

And then there's the name. Tadao Ando, the Pritzker Prize-winning architect, built his legacy on concrete that feels alive—warm, not cold; intentional, not industrial. MCM's Ando Cement pays homage to that philosophy. It's not just a "cement board"—it's a nod to the idea that great design should feel both grounded and elevated. Plus, with MCM's commitment to sustainability (many slabs use recycled materials), you're choosing a product that's kind to the planet without skimping on style.

Meet Your Materials: Ando Cement (Light Grey vs. Dark Grey) & the MCM Family

First things first: get to know your slabs. Ando Cement MCM Big Slabs typically come in standard sizes—think 1200x600mm or 2400x1200mm, though custom cuts are possible. The light grey variant has a soft, almost chalky undertone, with tiny flecks that catch the light like morning dew on concrete. Dark grey, on the other hand, is deeper, richer, with a charcoal-like intensity that adds drama without overwhelming. Both share that signature Ando texture: a slight "tooth" that feels organic, as if it was poured by hand.

And while we're focusing on Ando Cement today, it's worth noting how it plays with other MCM products. Pair light grey Ando with fair-faced concrete slabs for a monochromatic, industrial-chic look, or mix dark grey with flexible stone accents (think thin, curved panels) for contrast. The MCM Big Slab Board Series is all about cohesion, so don't be afraid to mix and match—just keep the texture consistent to avoid visual clutter.

Quick Comparison: Ando Cement vs. Fair-Faced Concrete

Pre-Installation Prep: The "Measure Twice, Cut Once" Phase

Installing MCM Big Slabs is rewarding, but like any project, the secret is in the prep. Rushing this step is the #1 mistake I've seen DIYers and pros alike make. Let's avoid that.

Tools You'll Need (Don't Skimp on the Right Gear!)

• Notch trowel: 6mm or 8mm notches—this controls adhesive thickness. Ando Cement is lightweight, but even coverage is key.
• Rubber mallet: For tapping slabs into place without cracking them (MCM is tough, but gentle is better).
• Wet saw with a diamond blade: Cutting MCM requires a sharp blade to avoid chipping the edges.
• Level (2ft and 4ft): Trust me, a wonky first slab ruins the whole wall.
• Adhesive: Use a high-quality, flexible tile adhesive (check MCM's recommendations—they often specify a polymer-modified formula).
• Spacers: 2mm or 3mm for consistent grout lines. Even if you're going for a "seamless" look, spacers prevent uneven gaps.
• Surface primer: If your substrate is porous (like drywall or brick), a primer helps the adhesive bond better.

Surface Check: Is Your Wall/Floor Ready?

MCM slabs are flexible, but they need a flat, clean substrate. Walk through these checks:

1. Flatness: Use a 4ft level to check for dips or bumps. More than 3mm of unevenness? Sand down high spots or fill low spots with a leveling compound. MCM can bend, but not that much.
2. Cleanliness: Wipe away dust, grease, or old adhesive with a damp cloth. I once skipped this step on a garage wall, and the adhesive failed in six months. Dust acts like a barrier—don't let it win.
3. Moisture: Check for leaks or dampness, especially in basements or bathrooms. MCM is water-resistant, but the substrate needs to be dry. Use a moisture meter if you're unsure (aim for less than 5% moisture content).

Layout Planning: Dry Fit Like Your Project Depends On It (It Does)

Here's a trick I learned early on: lay out the slabs on the floor first, exactly how they'll go on the wall. This helps you spot awkward cuts (like a tiny 2-inch slab at the edge) and plan around them. Start with the largest, most visible wall first—you want the most symmetrical layout there. For Ando Cement, consider the direction of the light: if the room gets morning sun from the east, align the slabs vertically to create subtle shadow lines that change throughout the day. It's a small detail, but it makes the space feel dynamic.

Step-by-Step Installation: Let's Get Those Slabs Up!

Okay, prep done—now the fun part. Let's break this down into 6 clear steps. I'll focus on wall installation, but the process is similar for floors (just add a waterproofing membrane if it's a wet area).

Step 1: Prime the Substrate (If Needed)

If your wall is drywall, brick, or concrete block, apply a coat of primer with a roller. Let it dry completely (check the primer's instructions—usually 2-4 hours). Primer isn't always necessary on smooth, non-porous surfaces like existing tile, but when in doubt, use it. It's cheap insurance against peeling.

Step 2: Mix the Adhesive (Slow and Steady Wins the Race)

Follow the adhesive manufacturer's instructions—every product is different. Typically, you'll mix powder with water in a bucket until it's the consistency of thick peanut butter. Let it sit for 5 minutes, then stir again. Pro tip: Mix only as much as you can use in 20-30 minutes. Adhesive sets fast, and you don't want to rush applying it.

Step 3: Apply Adhesive with the Notch Trowel

Hold the trowel at a 45-degree angle and spread adhesive evenly over a 2ft x 2ft section of the wall. The notches will leave ridges—this is good! The ridges collapse when you press the slab, ensuring full contact. Don't cover the entire wall at once—work in small sections to keep the adhesive from drying out.

Step 4: Place the First Slab (Start at the Bottom Corner)

Align the first slab with the bottom corner of your wall, using a level to make sure it's plumb (straight up and down) and level (side to side). Gently press it into the adhesive, then tap the center and edges with the rubber mallet to set it. Check the level again—even a tiny tilt will throw off the next slab. ｉｎｓｅｒｔ spacers along the top and right edges before moving on.

Proceed row by row, working from bottom to top. Stagger the joints (like brickwork) for strength—don't line up the vertical seams. This prevents weak spots and looks better, too.

Step 5: Cut Slabs for Edges and Corners

When you reach the end of a row or a corner, measure the space carefully, mark the slab with a pencil, and cut with the wet saw. Safety first: Wear goggles and gloves, and keep the saw's water reservoir full to reduce dust. Ando Cement cuts cleanly, but support the slab fully while cutting to avoid chipping the edges.

For outlets or switches, measure the opening, mark the slab, and drill pilot holes before cutting with a jigsaw (use a diamond blade for MCM). Take your time here—neat cuts make the finished project look professional.

Step 6: Grout, Clean, and Seal

Let the adhesive cure for 24 hours (longer if it's humid). Then, remove the spacers and mix grout that matches your slab color (light grey grout for light grey Ando, dark grey for dark grey). Apply grout with a rubber float, pressing it into the joints at a 45-degree angle. Let it sit for 10 minutes, then wipe away excess with a damp sponge (don't use too much water—you'll weaken the grout).

After 24 hours, buff the slabs with a dry cloth to remove any grout haze. Finally, seal the grout (and the slabs, if recommended) with a penetrating sealer. This prevents stains and makes cleaning easier—especially important in kitchens or bathrooms.

Post-Installation Care: Keep That Ando Glow

Ando Cement is low-maintenance, but a little care goes a long way. Sweep or vacuum floors regularly to prevent grit from scratching the surface. For walls, wipe with a damp cloth and mild soap (avoid harsh cleaners like bleach or ammonia—they can dull the finish). If you spill something oily, blot it immediately—sealer helps, but prompt action is key.

Over time, the matte finish might develop a slight sheen in high-traffic areas—that's normal! It's just the slab adapting to its environment, adding character. If you want to refresh it, a light buff with a dry microfiber cloth will bring back the original matte look.

Design Ideas: Beyond the Basics with Ando Cement

Now that your slabs are up, let's talk about making the space sing. Ando Cement plays well with others—here are a few ideas:

• Accent Wall + Contrast: Use dark grey Ando for a fireplace accent wall, then pair it with MCM's Lunar Peak Silvery slabs on the adjacent wall. The cool silver and deep grey create a modern, cosmic vibe.
• Backsplash with Texture: Light grey Ando as a kitchen backsplash, with flexible stone "waves" (MCM's Wave Panel) as a border. The flexibility of MCM lets you curve the wave panels for a soft, organic edge.
• Floor-to-Ceiling Monochrome: Install light grey Ando on walls and floors, then add warmth with wooden furniture and plants. It's minimalist without feeling sterile.

Final Thoughts: The Joy of a Job Well Done

Installing MCM Big Slab Ando Cement isn't just about slapping panels on a wall—it's about creating a space that feels intentional. When you step back and see those clean lines, that subtle texture catching the light, you'll remember why you chose Ando Cement in the first place. It's a material that doesn't shout—it whispers, "This was made with care."

And isn't that what we all want from our homes and spaces? To feel cared for, seen, and surrounded by things that matter. So grab your trowel, take your time, and enjoy the process. When you're done, pour yourself a cup of coffee, lean against that Ando Cement wall, and smile—you didn't just install slabs. You built something that feels like home.