10 Best heavy duty extension cords of 2026

Save up to 26% off

1

POWGRN
POWGRN 100 ft 12/3 Outdoor Extension Cord Waterproof Heavy Duty with Lighted Indicator End 12 Gauge 3 Prong, Flexible Cold-Resistant Long Power Cord Outside, 15Amp 1875W SJTW Yellow ETL Listed

18% Off
Main highlights

High Power Capacity and Durability
Up to 1875W, 12 gauge, 15 amp, 125 volts, heavy duty, waterproof, weather-resistant, heat-resistant, corrosion-resistant, flexible vinyl, ETL/cETL listed, 100 feet.

Versatile Outdoor and Indoor Applications
Suitable for circular saws, string lights, block heaters, lawn mowers, gardening, landscaping, construction sites, welding work, major appliances, and more.

Highly Praised for Durability and Flexibility
Customers appreciate its heavy-duty build, flexibility in cold weather, lighted end for power indication, and resistance to wear and weather conditions.
Key specs
- material:PVC jacket
- length:100 feet
- wattage:1875 watts
- color:Bright
- plug format:NEMA 5-15P
9.8

Exceptional

Our Rating

9.9
Durability

9.7
lasts a long time

9.7
worth the money
How do we rank?

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2

LifeSupplyUSA
50ft Outdoor/Indoor Extension Cord 10/3 Gauge Ultra Heavy Duty 3 Prong SJTW, Waterproof, Flexible Cold-Resistant Long Power Cord,15A 125V 1875W, Yellow by LifeSupplyUSA
Main highlights

Extreme Durability
Engineered to endure harsh conditions with waterproof design for unmatched durability and reliability indoors and outdoors.

Versatile Applications
Ideal for powering heavy-duty equipment, construction jobs, home renovations, and outdoor lighting setups.

Enhanced Safety Feature
Lighted end for visibility and brightly colored jacket to minimize tripping hazards and improve safety.
9.5

Excellent

Our Rating
3

POWGRN

POWGRN 50 ft 12/3 Outdoor Extension Cord Waterproof Heavy Duty with Lighted Indicator End 12 Gauge 3 Prong, Flexible Cold-Resistant Long Power Cord Outside, 15Amp 1875W SJTW Yellow ETL Listed
9.4

Excellent

Our Rating
4

PLUGTUL

PLUGTUL Heavy Duty Surge Protector with Safety Cover, 15A Metal Power Strip, 6FT Extension Cord, 14/3 AWG, 980Joules, Kitchen, Garage, Shop, Industrial Wall Mount, ETL Listed
9.3

Excellent

Our Rating
5

Southwire
Southwire Outdoor Extension Cord – Durable Vinyl Jacket for For Farm, Ranch & Workshop - Lighted End With Reinforced Blades - SJTW, Yellow - 12 Gauge, 3 Prong - 50 Feet

17% Off
Main highlights

Key Features
Versatile, highly visible, water-resistant, durable with reinforced blades and lighted end. Ideal for indoor and outdoor use, UL Listed.

Ideal Uses
Perfect for landscaping, gardening, powering appliances, and providing a safe, visible power source in high-traffic areas.

Customer Praise
Most reviews highlight its durability and the convenience of the lighted end, ensuring power is on and enhancing safety.
Key specs
- material:Vinyl jacket
- length:14 inches
- wattage:N/A
- color:Yellow
- plug format:N/A
9.0

Excellent

Our Rating

9.9
For exercise

9.9
materials Quality

9.7
lasts a long time
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6

huanchain
HUANCHAIN 12 Gauge Heavy Duty Outdoor Extension Cord 25 ft Waterproof with Lighted end, Flexible Cold-Resistant 3 Prong Electric Cord Outside, 15Amp 1875W 12AWG SJTW, Yellow, ETL

26% Off
Main highlights

Lighted End and Extra Size for Safety
The power socket indicator light shows that power is on. Extra size Male NEMA 5-15P power plug and Female NEMA 5-15R power socket for safety.

Ideal for Indoor and Outdoor Use
Suitable for home office, industrial, and outdoor use. Flame-resistant, waterproof, weather-resistant, and cold-resistant PVC outer jacket ensures durability in various environments.

Praised for Durability and Flexibility
Customers appreciate the cord's heavy-duty construction, flexibility, and high visibility. It performs well under heavy loads and harsh conditions.
Key specs
- material:Vinyl
- length:25 ft
- wattage:1875Watts
- color:Shiny Yellow
- plug format:NEMA 5-15P
8.8

Very Good

Our Rating

9.9
lasts a long time

9.5
worth the money

9.3
Simple to use
7

SURAIELEC

SURAIELEC 6-Outlet Surge Protector Power Strip, 1800J Surge Protection, Overmolded Rubber Housing, 14AWG 10FT Angled Flat Plug Cord for Workshop, Garage, Office, ETL Listed
8.7

Very Good

Our Rating
8

Skrizcable

16/3 10A 125V 1250W 100 Ft Outdoor Extension Cord Waterproof, Weatherproof & Flame Retardant Black 3 Prong Power Cord Outside for Lawn & Garden, SJTW ETL Listed

25% Off
8.5

Good

Our Rating
9

UltraPro
UltraPro Outdoor Extension Cord, 15 Ft, Heavy Duty Extension Cord, Double Insulated, Grounded, 16 Gauge, 3 Prong Extension Cords, General Purpose Long Extension Cord, UL Listed, Black, 36824
Main highlights

Heavy-duty Extension Cord
This grounded three-wire, 16AWG extension cord features a double-insulated design, one-piece molded plug, and vinyl jacket for moisture, dust, and dirt protection.

Ideal for Outdoor and Tool Use
Perfect for garages, backyards, patios, and tools requiring extended reach, such as hand drills and jigsaws, with its 15ft. length.

Highly Durable and Reliable
Customers frequently praise the cord's durability and weather resistance, noting it performs well in various conditions and lasts for years.
Key specs
- material:Vinyl jacket
- length:15ft
- wattage:1625 W
- color:N/A
- plug format:Three-prong
8.4

Good

Our Rating

9.9
Cord length

9.9
Waterproof

9.7
lasts a long time
10

POWTECH
POWTECH Heavy duty 6 FT Air Conditioner and Major Appliance Extension Cord UL Listed 14 Gauge, 125V, 15 Amps, 1875 Watts GROUNDED 3-PRONGED CORD
Main highlights

Heavy Duty Extension Cord Features
UL Listed, 14 Gauge, 1875 MAX Watts, 15 Amps, 125V, heavy-duty vinyl insulation, angle plug for tight spaces, grey color.

Ideal Use Scenarios
Perfect for large appliances like washers, dryers, refrigerators, power tools, air conditioners, heaters, and other major appliances.

Praised Feature
Stays cool under heavy use, ideal for high-wattage appliances, praised for safety and reliability in customer reviews.
8.2

Good

Our Rating

9.9
Durability

9.7
safety

9.5
worth the money

10 Best heavy duty extension cords of 2026

1

POWGRN 100 ft 12/3 Outdoor Extension Cord Waterproof Heavy Duty with Lighted Indicator End 12 Gauge 3 Prong, Flexible Cold-Resistant Long Power Cord Outside, 15Amp 1875W SJTW Yellow ETL Listed

9.9

9.7

9.7

How do we rank?

How do we rank?

Analyzing top stores

2

50ft Outdoor/Indoor Extension Cord 10/3 Gauge Ultra Heavy Duty 3 Prong SJTW, Waterproof, Flexible Cold-Resistant Long Power Cord,15A 125V 1875W, Yellow by LifeSupplyUSA

3

POWGRN 50 ft 12/3 Outdoor Extension Cord Waterproof Heavy Duty with Lighted Indicator End 12 Gauge 3 Prong, Flexible Cold-Resistant Long Power Cord Outside, 15Amp 1875W SJTW Yellow ETL Listed

4

PLUGTUL Heavy Duty Surge Protector with Safety Cover, 15A Metal Power Strip, 6FT Extension Cord, 14/3 AWG, 980Joules, Kitchen, Garage, Shop, Industrial Wall Mount, ETL Listed

5

Southwire Outdoor Extension Cord – Durable Vinyl Jacket for For Farm, Ranch & Workshop - Lighted End With Reinforced Blades - SJTW, Yellow - 12 Gauge, 3 Prong - 50 Feet

9.9

9.9

9.7

6

HUANCHAIN 12 Gauge Heavy Duty Outdoor Extension Cord 25 ft Waterproof with Lighted end, Flexible Cold-Resistant 3 Prong Electric Cord Outside, 15Amp 1875W 12AWG SJTW, Yellow, ETL

9.9

9.5

9.3

7

SURAIELEC 6-Outlet Surge Protector Power Strip, 1800J Surge Protection, Overmolded Rubber Housing, 14AWG 10FT Angled Flat Plug Cord for Workshop, Garage, Office, ETL Listed

8

16/3 10A 125V 1250W 100 Ft Outdoor Extension Cord Waterproof, Weatherproof & Flame Retardant Black 3 Prong Power Cord Outside for Lawn & Garden, SJTW ETL Listed

9

UltraPro Outdoor Extension Cord, 15 Ft, Heavy Duty Extension Cord, Double Insulated, Grounded, 16 Gauge, 3 Prong Extension Cords, General Purpose Long Extension Cord, UL Listed, Black, 36824

9.9

9.9

9.7

10

POWTECH Heavy duty 6 FT Air Conditioner and Major Appliance Extension Cord UL Listed 14 Gauge, 125V, 15 Amps, 1875 Watts GROUNDED 3-PRONGED CORD

9.9

9.7

9.5

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