XTREME MATS Waterproof Undersink Mat Gray 28in x 19 1/4in - Leak

Our review of the XTREME MATS Waterproof Undersink Mat finds it ideal for homeowners who want a simple, durable way to protect bathroom and kitchen cabinets from leaks and spills. The single biggest reason to buy is its heavy-duty, flexible construction that holds up to 3.6 gallons of liquid while fitting through tight cabinet openings, so it works well for vacation homes, rentals, or everyday households that need reliable leak containment. Installation is quick and cleanup is easy, making this a practical choice for people who value protection without fuss.

Key Features

• Perfect Fit: Sized for bathroom cabinets at L x 19in and kitchen cabinets at L x 22in so it fits typical cabinet interiors without trimming in most cases.
• High Capacity: The mat holds up to 3.6 gallons of liquid, providing substantial containment in the event of a plumbing leak or chemical spill.
• Flexible, Durable Material: Made from waterproof low-density polyethylene so it flexes to pass through small openings yet springs back to shape to cover the cabinet base.
• Raised, Angled Walls: Angled side walls and a textured surface keep stored items elevated and prevent liquids from reaching the rest of the cabinet.
• Multipurpose Use: Serves as an under sink driptray, shelf liner, and cabinet base protector, making it useful beyond just leak containment.
• Easy Care and Warranty: Removable for quick cleaning and backed by a lifetime limited warranty against manufacturing defects.

Who It's For

The XTREME MATS undersink mat is best for homeowners, landlords, and renters who want straightforward protection for bathroom vanities and kitchen base cabinets. It particularly suits people preparing seasonal homes or rental properties where quick, reliable containment of leaks can prevent costly damage.

Those who should look elsewhere include people whose supply lines or drains come through the floor of the cabinet without clearance, unless they are willing to modify the mat. Also, customers requiring an integrated electronic leak sensor should note the company sells sensors separately.

Pros & Cons

Pros

• Heavy-duty construction that contains spills and leaks without seams or joins.
• Flexible enough to install through narrow openings but sturdy enough to support gallons of water.
• Textured surface and raised walls keep items elevated and the cabinet tidy.
• Lifetime limited warranty and US-based design and support for questions during business hours.

Cons

• May require modification if plumbing comes through the cabinet floor, which adds installation work.
• Water sensor is not included and must be purchased separately for active leak alerts.

Specifications

Product type	Under sink cabinet mat / driptray
Dimensions (model)	28in x 19 1/4in (fits bathroom cabinets)
Alternate fit	Length option fits kitchen cabinets at L x 22in
Material	Low-density polyethylene (waterproof)
Liquid capacity	Up to 3.6 gallons
Warranty	Lifetime limited warranty against manufacturing defects
Origin / Support	Designed and engineered in the USA; US based support 8 am - 5 pm EST

Our Verdict

The XTREME MATS Waterproof Undersink Mat is a practical, well-built solution for preventing cabinet damage from leaks and spills. Its combination of high containment capacity, flexible installation, and textured, raised walls gives solid day-to-day protection and value, especially for homeowners and property managers who need low-effort maintenance and strong leak defense.

Frequently Asked Questions

Will the mat fit if my plumbing comes through the cabinet floor?
Measure inside the cabinet first; if plumbing projects through the floor the mat will likely require modification to fit around supply lines or a drain.

Does the product include a leak sensor?
No, the mat does not include a water sensor; sensors are sold separately.

How do I clean the mat?
The mat is removable and can be wiped clean or rinsed, then reinstalled once dry.