Best Grill Mats & Deck Protection: Under-Grill Pads, Ember Mats & Splatter Liners

A grill drips. Grease, marinade, ash, and the occasional dropped sausage all end up on whatever's underneath, and on a wood deck or a pale patio that means stains that don't come out and, in the case of grease on dry wood, a fire hazard. A grill mat — a heat-resistant pad that sits under the cooker — is the cheap fix. This guide covers the two things people mean when they say "grill mat" (the under-grill deck protector, and the on-grate cooking mat), what materials actually work, and the picks in each. Note the difference before you buy: the two are not interchangeable.

Two Kinds of Grill Mat

Under-grill deck protectors

Large pads placed under the grill to catch drips and shield the surface from radiant heat and stray embers. They're made of PVC, rubber, fiberglass-reinforced fabric, or fire-resistant composite. The best are heat rated for embers, thick enough to stay flat, and easy to hose off.

On-grate cooking mats

Thin PTFE-coated fiberglass sheets laid on the grate so small or sticky food — fish, vegetables, shrimp, eggs — doesn't fall through or stick. Useful, but they block direct flame contact and have a temperature ceiling. We cover them at the end.

What to Look For in a Deck Protector

• Heat and ember rating. A pad meant for a gas grill's drips is not necessarily rated for hot charcoal or a fire pit's embers. Look for an explicit ember or high-temperature rating if you cook on charcoal, a kamado, or a fire pit.
• Size. The mat should extend beyond the grill's footprint on all sides, especially the front where you stand and spill, and the side where the grease tray hangs. Measure the cart footprint and add a foot in each direction.
• Grip and flatness. Thin mats curl at the edges and become trip hazards. Heavier materials lie flat; some have a textured underside to stop sliding.
• Cleanability. Smooth surfaces wipe or hose clean. Fabric mats absorb grease and get heavy and smelly.
• Deck safety. Composite decking can be discolored by some rubber and PVC mats over long contact, and any mat traps moisture against wood. Lift and dry it periodically.

The Picks

Placement and Use

1. Sweep or wash the deck first so the mat doesn't trap grit against the surface.
2. Center the mat with extra coverage at the front and on the grease-tray side.
3. For charcoal and kamados, use an ember-rated mat and keep the ash catcher closed.
4. Lift the mat every few weeks, wipe both sides, and let the deck dry before replacing it — trapped moisture is the main way mats damage wood.
5. Store the mat rolled, not folded, over winter to prevent creases that become trip hazards.

On-Grate Cooking Mats

PTFE-coated fiberglass cooking mats are useful for foods that stick or fall apart: fish fillets, shrimp, sliced vegetables, eggs, pancakes at a campsite. They lay on the grate, take a light oil, and wipe clean. Their limits: a temperature ceiling around 500°F, which rules out searing; no direct flame contact, so food cooks more like it would on a griddle; and they wear out — discard any mat with a scratched or flaking surface. Use them as a tool for specific foods, not as a permanent grate liner.

Grease, Decks, and Fire Risk

Grease soaked into dry wood is a real ignition risk under a hot grill, and it's the reason a mat is more than a cosmetic choice on a deck. Combine the mat with the basics in our grill safety guide: keep the grill a few feet from railings and siding, keep the grease tray emptied, and have a way to smother a grease fire that doesn't involve water. A mat that catches the drips is the first line, not the only one.

Bottom Line

Gas and pellet grill owners on a deck want a wide, wipeable PVC or rubber mat plus a drip pan under the grease cup. Charcoal, kamado, and fire-pit users need an ember-rated fire-resistant mat instead. Cooking mats are a separate tool for fish and vegetables, not a substitute for either.

Mats for Specific Situations

• Renters and shared decks. A mat is the difference between getting a deposit back and not. Choose the largest wipeable mat you can fit and lift it monthly.
• Pavers and concrete. Stone stains from grease as readily as wood and is harder to clean. A mat under a grill on a patio is worth it for the same reasons; the fire-risk argument is weaker, so a lighter PVC mat is fine.
• Artificial turf. Turf melts under embers and stains permanently. Use an ember-rated mat and keep charcoal cookers off turf altogether if you can.
• Balconies. Check the building's rules first; many prohibit charcoal. For a permitted gas or electric grill, a small mat catches the drips that would otherwise run to the balcony below.
• Under a smoker running overnight. Long cooks produce a lot of grease and, on offsets, the occasional ember from the firebox door. Size the mat to include the firebox side.

Cleaning a Grease-Stained Deck

If the mat arrived too late: for fresh grease on wood, blot, then cover with baking soda or cat litter overnight to draw it out, sweep, and scrub with a degreasing deck cleaner. Set-in stains on wood usually need a light sanding and re-staining of the board. On concrete, a degreaser and a stiff brush, then a pressure washer on a low setting. Composite decks should only be cleaned with the maker's recommended products — solvents can damage the cap layer.

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