5 Best Waterproof Under Sink Mats for 2025

Under sink cabinets in kitchens and bathrooms are prone to leaks, spills, and chemical drips from pipes, cleaners, and daily use. A good waterproof mat acts as a barrier, containing liquids to prevent damage to wood floors and cabinetry while making cleanup effortless. Based on expert reviews, user feedback, and product testing from 2025 sources, we’ve rounded up the top five options. These mats are durable, easy to install (many are trimmable), and versatile for both kitchen and bath applications. Prices typically range from $15–$60, depending on size and features.

1. Xtreme Mats Under Sink Cabinet Mat

This heavy-duty mat stands out for its robust construction and lifetime warranty, making it ideal for high-traffic kitchens. Made from 100% virgin recycled LDPE (low-density polyethylene), it’s eco-friendly, non-toxic, and highly resistant to chemicals and stains. The raised edge contains spills effectively, and it ships flat for a crease-free fit—perfect for custom trimming around plumbing.

• Dimensions: 34” x 22” (kitchen depth; smaller sizes available)
• Key Features: Holds multiple gallons of liquid; optional water sensor for leak alerts; easy to clean with soap and water
• Pros: Extremely durable; prevents mold and costly damage; fits most standard cabinets
• Cons: Higher price point; may require scissors for precise cuts
• Best For: Homeowners seeking long-term protection with smart add-ons

2. WeatherTech SinkMat

Known for automotive-grade quality, this mat brings precision engineering to home use. Crafted from thermoplastic elastomer (TPE), it’s 100% recyclable, odorless, and free of harmful chemicals like PVC or BPA. The nonstick surface repels mold and mildew, while the ½-inch raised edge keeps leaks contained. It’s laser-measured for easy trimming and offers a lifetime warranty against defects.

• Dimensions: Customizable up to 1/8-inch thick; fits most cabinets
• Key Features: Resists household chemicals; trim lines for plumbing; made in the USA
• Pros: Superior build quality; virtually indestructible; easy to wipe down
• Cons: Slightly thinner than some competitors; limited color options
• Best For: Those who prioritize premium materials and recyclability

3. Gorilla Grip Silicone Under Sink Mat

Affordable and highly rated for everyday reliability, this mat excels in slip resistance and versatility. Constructed from BPA-free silicone, it’s 100% waterproof and dishwasher-safe, with reinforced edges to prevent tearing. The raised dots on top keep items from sliding, and it grips cabinets without adhesives. Users praise its stain resistance against spills like oils or cleaners.

• Dimensions: 22” x 19” (expandable sizes up to 30” x 24”)
• Key Features: 0.7-inch lip holds 1+ gallons; safe for kitchens, baths, and laundry; non-slip backing
• Pros: Budget-friendly; quick-drying and easy to store; multi-use (e.g., pet mats)
• Cons: Lip may soften over extreme heat exposure; not as thick as plastic alternatives
• Best For: Renters or small spaces needing flexible, low-maintenance protection

4. Winisok Waterproof Under Sink Mat

A top pick in 2025 reviews for its balance of size and performance, this silicone mat covers large areas without warping. Food-grade material ensures safety around edibles, and it’s oil-resistant for hassle-free cleaning—just wipe with a cloth. The thick backing prevents slipping, and it’s trimmable for a snug fit under sinks or in drawers.

• Dimensions: 34” x 22” (holds up to 3.3 gallons)
• Key Features: Absorbs and disperses liquids; 12-month warranty; versatile for cabinets, counters, or pet areas
• Pros: Generous coverage; no deformation over time; simple installation
• Cons: May curl slightly if not weighted initially; basic design
• Best For: Families with kids or pets, where multi-purpose use is key

5. URMONA Waterproof Silicone Under Sink Mat

This double-thick mat shines for its flexibility and capacity, bending easily around pipes while holding 2 gallons of liquid. High-quality silicone makes it oil- and waterproof, with a soft feel that won’t scratch surfaces. It’s a favorite for DIY enthusiasts, doubling as a craft or litter mat, and comes in dark grey for a sleek look.

• Dimensions: 31” x 22” (shelf liner size; cuttable)
• Key Features: Non-adhesive and foldable; multipurpose for bathrooms, tools, or shoes; easy disassembly for cleaning
• Pros: Highly flexible for tight spaces; affordable; resists moisture damage
• Cons: Edge height is lower (less spill containment); can attract dust if not rinsed regularly
• Best For: Crafters or multi-room households wanting an all-in-one organizer

When choosing a mat, measure your cabinet and consider pipe placement for trimming. All these options are non-toxic and easy to maintain, but pair with a leak detector for ultimate peace of mind. Available at major retailers like Amazon, Home Depot, and Walmart.