MCM White Wood Big Slab vs Small Panels: Installation Time Analysis

First Things First: What Are We Actually Comparing?

Before we start stopwatches, let's make sure we're on the same page about the products themselves. Both fall under the MCM (Modified Composite Material) umbrella—a line known for blending durability, flexibility, and aesthetic versatility. The White Wood variant, in particular, is a fan favorite for its warm, organic wood grain texture that mimics real timber but with the added benefits of MCM's lightweight, weather-resistant properties.

The MCM big slab board series takes this wood grain charm and scales it up: think large, continuous panels, often measuring 1200x2400mm or more. These slabs are designed to cover vast surfaces with minimal seams, creating a sleek, modern look. On the flip side, the Small Panels are the more traditional option, typically ranging from 300x600mm to 600x600mm—smaller, more maneuverable pieces that fit into tighter spaces or create intricate patterns.

But here's the kicker: size isn't just about looks. It directly impacts how long it takes to get those panels from the truck to the wall. Let's dig into the installation process step by step.

Breaking Down the Installation Process

Installing MCM cladding—whether big slabs or small panels—follows a general workflow: preparation, application, and finishing. But the devil (and the time differences) are in the details. Let's walk through each phase for both options.

1. Preparation: Getting the Site Ready

Before any panel touches the wall, prep work sets the stage. For both big slabs and small panels, this includes cleaning the substrate (usually a concrete or metal frame), checking for (that's "flatness" for non-construction folks), and marking guidelines to ensure alignment. But here's where size starts to matter:

• Big Slabs: Because these are large and rigid, the substrate needs to be impeccably flat. Even a small bump or dip can cause a slab to sit unevenly, leading to gaps or cracks later. Contractors often spend extra time here—using laser levels to map out high spots, sanding down rough areas, or applying a leveling compound if needed. On average, this prep work can add 1-2 hours per 100 sqm compared to small panels.
• Small Panels: Their smaller size makes them more forgiving. A slight imperfection in the substrate? No problem—you can adjust individual panels to compensate. Prep time here is usually faster, focusing more on basic cleaning and marking vertical/horizontal lines. Most crews report finishing prep in 2-3 hours for 100 sqm, vs. 3-4 hours for big slabs.

Another prep step: material handling. Big slabs are heavy—typically 8-12 kg per sqm—so you'll need a forklift or crane to move them from the truck to the installation area. Small panels, at 3-5 kg per sqm, can be carried by hand or with a simple dolly. Loading and unloading big slabs adds 30-60 minutes to the prep phase, especially on sites with limited access.

2. Application: Sticking the Panels On

This is where the clock really starts ticking. Application involves applying adhesive, positioning the panels, and securing them (either with mechanical fasteners or just adhesive, depending on the system). Let's break it down:

• Big Slabs: Once the substrate is prepped, applying a big slab is a team sport. You'll need 2-3 people per slab—one to lift, one to guide alignment, and one to press it firmly onto the adhesive. The key here is speed: adhesive sets quickly, so you can't linger. But because each slab covers more area (a 1200x2400mm slab covers ~2.88 sqm), you fly through square footage. On average, a crew of 3 can install 40-50 sqm of big slabs in an 8-hour day.
• Small Panels: These are a one-person job for most. You can carry a stack of 10-15 panels to the wall, apply adhesive to the back (or trowel it onto the substrate), and stick them on one by one. But with each panel covering just 0.36-0.64 sqm, you're making far more individual placements. A solo installer might do 15-20 sqm in a day, while a crew of 2 could hit 30-35 sqm—but that's still 10-15 sqm less than big slabs for the same labor.

Here's a quirk with small panels: grouting. Most small panel systems require grout between seams to seal gaps and enhance aesthetics. That's an extra step—mixing grout, applying it with a trowel, wiping off excess—and it adds 30-45 minutes per 100 sqm. Big slabs? No grout needed. Their large size means minimal seams, so you skip this step entirely.

3. Finishing: Cleaning Up and Quality Checks

After the panels are up, it's time to wrap things up. This includes cleaning off adhesive residue, inspecting for loose panels, and touching up any scuffs. Again, size plays a role:

• Big Slabs: With fewer seams, there's less residue to clean. A quick wipe with a damp cloth over the surface, and you're mostly done. Quality checks are faster too—you're inspecting 10-15 slabs per 100 sqm vs. 50-60 small panels. Total finishing time? About 1 hour per 100 sqm.
• Small Panels: More seams mean more grout residue to scrub off. Plus, each panel needs a quick tug test to ensure it's stuck fast. This can take 1.5-2 hours per 100 sqm—especially if grout has dried in hard-to-reach corners.