How do I check that a floor mat set will fit my car?

Steps

1. Lift out the current driver-side mat. Look at the carpet underneath and count the retention hooks, pegs or twist locks. Note their number, spacing and roughly where they sit relative to the pedals.
2. Lay a ruler in the driver footwell and take a straight-on photograph so the hook positions and their distance from the seat rail and the pedal box are visible.
3. Repeat for the passenger footwell. Some cars only have hooks on the driver side; some have one hook per footwell; some have two.
4. Slide the front seats fully forward. In the rear footwell, check whether the transmission or battery tunnel runs through the middle, how tall it is, and whether there is any rear-seat heater duct that would sit on top of the mat.
5. Decide on shape. If you want to trap grit and slush, choose a moulded TPE liner with walls that follow the footwell. If the car sees only dry use, a cut-to-shape carpet mat is lighter and cheaper.

What you need

• A ruler or short tape measure in millimetres.
• A phone camera with the flash available.
• A torch for footwells with dark carpet.
• The owner's handbook, which sometimes lists the OEM mat part number and confirms retention type.

Common mistakes

• Ordering a set that lists the correct make and model but the wrong trim. Some trims add heated rear-seat vents in the tunnel or a second driver-side hook, and the mat differs accordingly.
• Layering a new mat over the old one. Two stacked mats disengage the hooks entirely and slide as a pair. Remove the old mat first.
• Choosing a carpet mat when the car actually sees mud, snow or wet walking boots. Water passes through carpet mats to the OEM carpet underneath, which rots the sound deadening and holds a smell for months.

Frequently asked questions

Why do OEM retention hooks matter so much?

Because a floor mat that slides forward under the pedals is a genuine hazard. Modern cars have anchored retention points, usually one or two per front footwell, that lock the mat to the floor pan. A mat without matching holes just sits on the carpet and creeps forward. Cars sold in the EU since around 2007 have had this as a de facto requirement.

How do I tell a TPE liner from a carpet mat?

A TPE or thermoplastic elastomer liner is a moulded three-dimensional tray with raised edges that follow the footwell walls. It looks like a shallow tub and holds water and mud inside itself. A carpet mat is flat, cut to a two-dimensional outline of the footwell floor, and lets liquid soak through to the OEM carpet underneath.

Are the rear mats symmetrical?

Sometimes. Two individual rear mats are usually mirror-image asymmetric, with the transmission tunnel cut on one edge only. A single one-piece rear mat covers the whole rear footwell including the tunnel. Photograph the rear footwell with the front seats slid fully forward so the shape of the tunnel and any rear retention hooks is clear.

The listing shows generic hook holes, is that enough?

Only if the generic holes line up with your car's specific hook positions. Vehicle-specific mats are cut from a scanned pattern for one make and model, so the holes are exact. Universal mats with a few generic slots often need trimming or leave the hooks unengaged, which defeats the purpose.