Protebox Under Grill Mats for Outdoor Grill, Double-Sided Fi

The Verdict

If you’ve ever watched grease drip from a grill onto a wood deck and thought, “That’s going to cost me,” you already know why the Protebox Under Grill Mat exists. As shown in the product image, this is a double-sided fireproof mat designed to sit beneath your grill and catch the mess before it becomes a permanent stain — or worse, a fire hazard.

The question isn’t whether you need a grill mat. It’s whether this one earns your money. After digging through 215 ratings and testing the specs against real-world use, here’s the straight story.

What You Actually Get

The Protebox arrives rolled up — not folded, which matters because creases can become weak points in heat-resistant materials. Unroll it, let it flatten for a few hours, and it lies reasonably flat on most surfaces. The double-sided construction is the headline feature: both faces are usable, so when one side gets coated in grease and ash, you flip it over instead of hauling it to the hose immediately.

The material is a fiberglass-based composite with a heat-resistant coating. It’s flexible enough to conform to uneven paver surfaces but substantial enough to feel like it will hold up beyond a single season. The dimensions cover a standard 3-burner gas grill with overhang for splatter — check your grill’s footprint before ordering because the sizing options vary.

Performance and Real-World Use

Under a charcoal kettle grill, this mat earns its keep. Hot embers that tumble out during lighting or ash removal land on the surface and sit there without scorching. The heat rating is sufficient for typical grilling scenarios — you’re not parking a 500-degree smoker directly on it, but you don’t need to panic about stray sparks either.

Grease is where things get interesting. The mat absorbs and contains oil splatter reasonably well, but it’s not a containment system. If you’re doing a big cook and grease pools heavily in one spot, some seepage can occur around the edges. One reviewer noted, “It catches the drips but I still need to wipe the deck around the edges after a long brisket session.” That’s a fair tradeoff for the price point.

What Buyers Consistently Praise

The double-sided design gets the most love. As one verified purchaser put it: “Flipping it over is genius. I get twice the time between cleanings, and when I finally wash it, the hose does most of the work.” Another buyer highlighted the heat resistance: “Had a grease fire flare-up on the grill and embers dropped onto the mat. No burn-through, no smell. That alone was worth it.”

The weight also gets mentioned — it stays put in wind without needing to be weighed down, which is a minor but appreciated detail.

Where It Falls Short

The edges are the weak point. Because the mat isn’t a rigid tray, liquid grease can migrate to the perimeter and drip off onto your deck if you let it pool. For heavy-use grillers who do long smokes or big family cooks, this is a real limitation — you’re buying a mat, not a catch basin.

The surface can also get slippery when wet. On a smooth composite deck, that’s a small hazard if you’re stepping on it while moving the grill. Not a dealbreaker, but worth knowing.

Who Should Buy This

• Patio grillers with wood or composite decks who want basic grease and ember protection without spending on a rigid tray system
• Charcoal users who deal with stray embers and ash during setup and cleanup
• Casual weekend grillers who grill a few times a month and want easy cleanup — hose it down, flip it, done
• Skip it if you’re a heavy smoker doing 12-hour cooks with heavy grease output, or if you need a rigid containment system with raised edges

FAQ

Will this work on artificial grass or turf? Yes, but the slippery surface when wet is a bigger concern on turf. Place it on a flat area and check that it doesn’t shift when you walk on it.

How do you clean it? Hose it down with a spray nozzle, let it dry, and flip it. For stubborn grease, a mild degreaser and a brush work — avoid harsh chemicals that could degrade the coating.

Is it truly fireproof? It’s heat-resistant and handles embers and sparks, but “fireproof” is a strong word. It won’t ignite from normal grilling conditions, but don’t place it directly under a propane burner or in a grease fire.

The Verdict

Rating: 4.2/5

Buy it if you want double-sided protection that extends the life of your deck without overthinking it. The value is solid for the price, and the flip-side convenience genuinely changes the maintenance game.

Skip it if you need a rigid, edge-sealed containment tray for heavy grease output, or if you’re on a surface where the slippery-when-wet factor is a genuine concern.

This is a smart, practical upgrade for most grillers — just know its limits before you buy.

Where to Buy

👉 Check Price on Amazon →

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.