Premium Under Sink Cabinet Protection

Protect your cabinets from costly damage with the original under sink cabinet mat from Xtreme Mats. Designed to contain spills, messes, and stains before they spread, our waterproof liner features a raised edge and a durable, easy-to-clean surface. Whether in the kitchen, bathroom, or laundry room, this mat helps prevent water damage, resists household chemicals, and keeps cabinets clean and dry.

Available in 16 sizes for a perfect fit, each mat holds over 3.6 gallons of water - more than the competition. Made from a proprietary LDPE blend using 100% virgin recycled material, our mats are eco-friendly, non-toxic, and free from the harmful contaminants sometimes found in post-consumer plastics. Ships flat for an instant, crease-free fit.

Key Features

  • Original Under Sink Cabinet Mat – Not like inferior silicone mats that warp or fold
  • Industry-Leading Capacity – Holds over 3.6 gallons of water to contain spills
  • Raised Edge & Waterproof Design – Stops spills before they cause damage
  • Durable, Eco-Friendly Material – Made from 100% virgin recycled LDPE, non-toxic & chemical-resistant
  • Ships Flat – No creases, no warping, perfect fit every time
  • Lifetime Warranty – Built to last and protect for years
  • Optional Water Sensor – Adds extra leak detection (sold separately)

Shop Water Sensors

Stop Cabinet Disasters Before They Start!

Avoid the mess of spills, leaks, and stains with our Under Sink Cabinet Mat. It’s your cabinet’s best defense against damage, keeping things clean and stress-free. Don’t wait for trouble—prevent it with a mat!

Unbox the Perfect Mat. Crease-Free Guarantee

Our mats ship flat and snug in a box, so when you unpack them, they’re crease-free and ready to install. No wrinkles, no waiting - just a perfectly sturdy mat every time!

Water Sensor Defense

Stay proactive against water damage with the Xtreme Mats Water Sensor (sold separately). Be alerted with our audible alarm that notifies you immediately if a leak is detected, giving you an early warning to prevent costly damage and mold. Check our home accessories section for more!

Perfect For Every Room: Kitchen, Bath, and Laundry

Whether it’s a kitchen under-sink tray, a vanity cabinet protector, or a laundry utility sink mat, Xtreme Mats delivers reliable defense where you need it most. Designed to catch drips, splashes, and everyday messes, our cabinet mats guard surfaces from moisture, discoloration, and wear—helping your cabinets stay cleaner, longer, in every room of your home.

FAQs

Please read our FAQs page to find out more.

How to install your cabinet mat

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To install your Xtreme Mats Under Sink Cabinet Mat, position the mat with the "Xtreme Mats" logo on the right side and place it in the cabinet. Adjust it to fit snugly to cover the area.

How to install your cabinet mat if your cabinet has plumbing

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To measure and cut the Under Sink Cabinet Mat, start by measuring from the right and left sides of the cabinet to the center of the pipe, then measure from the front edge of the trim. Mark the pipe center on the mat from the top edge and adjust for accuracy by finding the midpoint if marks differ. Finally, drill a hole slightly larger than the pipe diameter at the marked center point with the mat’s front edge bent up at 90 degrees.

Did you order a water sensor? Here’s how to install it

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Just place it in the designated location on the mat or anywhere leaks can happen and forget it. If water is present in the area underneath the sensor it will trigger a 110 dB alarm.

How to trim the edge of your mat for a tight fit

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To trim an Xtreme Mats Under Sink Cabinet Mat for a tight fit, use a strong pair of scissors or a razor to carefully cut off the 1/4-inch edges. You can remove up to 1/2 inch from the width or depth to achieve the desired fit. Note that any modifications will not be covered by the warranty.

How to install your mat if you have a corner cabinet

If you have a corner sink base cabinet in your kitchen or bathroom, please see the diagrams below. Some corner cabinets make a 90 degree angle in the back and some are clipped; both options are shown. The best way to protect your corner sink base cabinet would be using one of the 2 options shown below. Xtreme Mats offers two cabinet mats depths. Our kitchen depth is 22 1/4" and vanity depth is 19 1/4" at their max expansion. Both kitchen and bathroom depth mats can be used in either orientation. You will need to take a look at all sizes of mats we offer and see what configuration would work best for you to protect against a plumbing leak from your valves, p-trap, garbage disposal or reverse osmosis filters.

What's covered in the lifetime warranty?

This warranty covers against normal wear and tear and guarantees that the product will not break, tear, or deform under normal usage. Owner must provide proof of purchase if purchased from a retailer, other than Xtreme Mats.

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