Power Where You Need It
Outdoor Extension Cords - Heavy Duty Extension Cords
A Proud Texas Owned Company
We’re a small team obsessed with durability. Every Watt’s Wire heavy duty extension cord is built to perform—whether you’re framing a house, tackling weekend projects, or lighting the backyard. Choose our outdoor extension cord designs for safe, dependable power in any season.
Use In Outdoor Conditions
All of our extension cords are rated for outdoor use.
What can Watt's Wire extention cords be used to power?
Our outdoor extension cords can be used with power tools, lights, air compressors, space heaters, freezers, refrigerators, outdoor equipment, generators, & many more!
How durable are Watt's Wire extension cords?
Our outdoor extension cord jackets are enforced with strength-adding poly strands, and the exterior is coated with clear vinyl to stand up to the heaviest day-to-day use.
Can Watt's Wire cords be used outdoor?
All of our cord jackets are weather and outdoor rated. As with all extension cord ends, be sure to keep the connections dry.
Shop Our Outdoor Power Cords
Heavy Duty Extension Cord
Our outdoor extension cords use heavy copper wire to minimize voltage drop.
Velcro Storage Straps
Extension Cord Ends
Pink Extension Cords
GFCI Extension Cords
Extreme Flexible Rubber Cords
10 Gauge Extension Cord
Green Outdoor Extension Cords
Black Extension Cords
White Extension Cords
12/3 Heavy Duty Extension Cord
Extension Cord 10+ ft
Extension Cord Waterproof
Short Extension Cord
Extension Cord Reel
12 Gauge GFCI Extension Cord Outdoor - Lighted End
Stay protected. Our GFCI extension cord senses current imbalance and trips to cut power, helping prevent electric shock. Our 12 gauge extension cord plugs are polarized and grounded for secure connections. This heavy duty extension cord is ready for outdoor use.
Why choose a Watt's Wire GFCI outdoor extension cord splitter?
At Watt's Wire we pride ourselves on producing a high quality product. We have been manufacturing outdoor extension cords for over 9 years, & are continuously improving on our design. We greatly value our customers & work hard to earn your trust.
Can I use your extension cord outdoor? Is your GFCI outdoor extension cord waterproof?
Yes, our GFCI extension cord jackets handle rain, snow, heat, and cold. The GFCI box is Class A rainproof. As with ALL extension cords, do not submerge plugs and connection points. Keep connections clear of pooling water.
Will your heavy duty extension cord splitter work with a generator?
Yes, our 12 gauge extension cord outdoor splitter is perfect to plug into your generator. Rated for up to 15 amps, our 3 way splitter can safely handle power hungry items. This 15 amp extension cord is perfectly suited to your needs.
Can I use your extension cords for my space heater, air compressor, power tools, washing machine, refrigerator, etc.?
Yes, our thick 12 gauge extension cords can handle most all of your household and power tool needs. Our outdoor cord splitter can handle a combined 15 amps or 1875 watts of power at any one time. Makes for the perfect outdoor outlet splitter too.
Switch to Safety with Our GFCI Extension Cords
Heavy-Duty Durability
Made to withstand the rough and tough conditions of a construction site. Great for at home use too!
Outdoor Safety
GFCI cuts off the power supply when it detects a short. This is essential to prevent severe electrical shocks & minimize the risk of electrical fires.
Versatile 3 Way Splitter
Our GFCI extension cord works as a 3 way plug adapter for a variety of tools & machinery. From electric saws, drills, lighting, to heavy equipment.
High Power Capacity
With our 15 amp extension cord you can supply up to 15 amps of electricity to your power hungry tools & machinery.
Auto Resetting GFCI
Power will automatically resume after the condition that caused the GFCI to trip is cleared.
Reliable GFCI Cord
Crafted for durability, safety, and performance.
Triple the outlets
Easily plug three items into one 3 way extension cord.
Thick Electric Cord
Only thick copper rated for 15 amps; not thin 16 or 18 gauge most competitors offer rated for 7 amps
Built for Work
Job-ready and rugged—our heavy duty outdoor extension cord handles it all.
Watt's Wire - A Brand You Can Trust
High Quality & Dependable
Built to last. This heavy duty extension cord is SJTW rated for tough jobs—an outdoor extension cord waterproof that stays flexible in cold and resists UV/abrasion. Grounded extension cord 3 prong for reliable power to tools and generators.
GFCI Extension Cord Outdoor w/ Rainproof GFCI Box
Weather-ready: waterproof extension cord SJTW jacket, UV resistant and abrasion tough. You can use this GFCI extension cord outdoor for dependable power on site, at home, or in the yard. Keep connection points dry, and away from running or standing water.
Watt's Wire: Compare & shop our other heavy duty extension cords
 GFCI Extension Cords |  Outdoor Extension Cords |  Outdoor Extension Cords |  Outdoor Extension Cords |  Outdoor Extension Cord |  Outdoor Extension Cord |  Outdoor Extension Cord | |
|---|---|---|---|---|---|---|---|
Customer Reviews | — | — | — | — | — | — | — |
Jacket Rating | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW |
Outdoor Extension Cord | ? | ? | ? | ? | ? | ? | ? |
Wire Gauge | 12 AWG | 12 AWG | 12 AWG | 14 AWG | 10 AWG | 14 AWG | 12 AWG |
Usage Rating | Heavy Duty Extension Cord | Heavy Duty Extension Cord | Heavy Duty Extension Cord | Medium / Heavy Duty | Heavy Duty Extension Cord | Medium / Heavy Duty | Heavy Duty Extension Cord |
Number of Outlets | 1 | 3 | 1 | 3 | 1 or 3 | 1 | 1 or 3 |
Lengths Available (ft) | 6, 15, 25, 50, 100 | 2, 6, 10, 15, 25, 50, 75, 100 | 1, 6, 10, 15, 25, 50, 100 | 15, 25, 50, 100 | 10, 25, 50, 100 | 15, 25, 50, 100 | 2, 6, 10, 15, 25, 50, 100 |
GFCI Protected | ? | ? | ? | ? | ? | ? | ? |
Colors Available | Yellow | Yellow | Yellow | Yellow, Green | Yellow | Pink | Black, White |
12 Gauge GFCI Extension Cord Outdoor - Lighted End
Stay protected. Our GFCI extension cord senses current imbalance and trips to cut power, helping prevent electric shock. Our 12 gauge extension cord plugs are polarized and grounded for secure connections. This heavy duty extension cord is ready for outdoor use.
Why choose a Watt's Wire GFCI outdoor extension cord splitter?
At Watt's Wire we pride ourselves on producing a high quality product. We have been manufacturing outdoor extension cords for over 9 years, & are continuously improving on our design. We greatly value our customers & work hard to earn your trust.
Can I use your extension cord outdoor? Is your GFCI outdoor extension cord waterproof?
Yes, our GFCI extension cord jackets handle rain, snow, heat, and cold. The GFCI box is Class A rainproof. As with ALL extension cords, do not submerge plugs and connection points. Keep connections clear of pooling water.
Will your heavy duty extension cord splitter work with a generator?
Yes, our 12 gauge extension cord outdoor splitter is perfect to plug into your generator. Rated for up to 15 amps, our 3 way splitter can safely handle power hungry items. This 15 amp extension cord is perfectly suited to your needs.
Can I use your extension cords for my space heater, air compressor, power tools, washing machine, refrigerator, etc.?
Yes, our thick 12 gauge extension cords can handle most all of your household and power tool needs. Our outdoor cord splitter can handle a combined 15 amps or 1875 watts of power at any one time. Makes for the perfect outdoor outlet splitter too.
Switch to Safety with Our GFCI Extension Cords
Heavy-Duty Durability
Made to withstand the rough and tough conditions of a construction site. Great for at home use too!
Outdoor Safety
GFCI cuts off the power supply when it detects a short. This is essential to prevent severe electrical shocks & minimize the risk of electrical fires.
Versatile 3 Way Splitter
Our GFCI extension cord works as a 3 way plug adapter for a variety of tools & machinery. From electric saws, drills, lighting, to heavy equipment.
High Power Capacity
With our 15 amp extension cord you can supply up to 15 amps of electricity to your power hungry tools & machinery.
Watt's Wire - A Brand You Can Trust
Auto Resetting GFCI
Power will automatically resume after the condition that caused the GFCI to trip is cleared.
Reliable GFCI Cord
Crafted for durability, safety, and performance.
Triple the outlets
Easily plug three items into one 3 way extension cord.
Thick Electric Cord
Only thick copper rated for 15 amps; not thin 16 or 18 gauge most competitors offer rated for 7 amps
Built for Work
Job-ready and rugged—our heavy duty outdoor extension cord handles it all.
High Quality & Dependable
Built to last. This heavy duty extension cord is SJTW rated for tough jobs—an outdoor extension cord waterproof that stays flexible in cold and resists UV/abrasion. Grounded extension cord 3 prong for reliable power to tools and generators.
GFCI Extension Cord Outdoor w/ Rainproof GFCI Box
Weather-ready: waterproof extension cord SJTW jacket, UV resistant and abrasion tough. You can use this GFCI extension cord outdoor for dependable power on site, at home, or in the yard. Keep connection points dry, and away from running or standing water.
Watt's Wire: Compare & shop our other heavy duty extension cords
GFCI Extension Cords | Outdoor Extension Cords | Outdoor Extension Cords | Outdoor Extension Cords | Outdoor Extension Cord | Outdoor Extension Cord | Outdoor Extension Cord |
|---|---|---|---|---|---|---|
| Customer Reviews | ||||||
| — | — | — | — | — | — | — |
| Jacket Rating | ||||||
| Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW | Extension Cord Outdoor - SJTW |
| Outdoor Extension Cord | ||||||
| ? | ? | ? | ? | ? | ? | ? |
| Wire Gauge | ||||||
| 12 AWG | 12 AWG | 12 AWG | 14 AWG | 10 AWG | 14 AWG | 12 AWG |
| Usage Rating | ||||||
| Heavy Duty Extension Cord | Heavy Duty Extension Cord | Heavy Duty Extension Cord | Medium / Heavy Duty | Heavy Duty Extension Cord | Medium / Heavy Duty | Heavy Duty Extension Cord |
| Number of Outlets | ||||||
| 1 | 3 | 1 | 3 | 1 or 3 | 1 | 1 or 3 |
| Lengths Available (ft) | ||||||
| 6, 15, 25, 50, 100 | 2, 6, 10, 15, 25, 50, 75, 100 | 1, 6, 10, 15, 25, 50, 100 | 15, 25, 50, 100 | 10, 25, 50, 100 | 15, 25, 50, 100 | 2, 6, 10, 15, 25, 50, 100 |
| GFCI Protected | ||||||
| ? | ? | ? | ? | ? | ? | ? |
| Colors Available | ||||||
| Yellow | Yellow | Yellow | Yellow, Green | Yellow | Pink | Black, White |
Power Where You Need It
Outdoor Extension Cords - Heavy Duty Extension Cords
A Proud Texas Owned Company
We’re a small team obsessed with durability. Every Watt’s Wire heavy duty extension cord is built to perform—whether you’re framing a house, tackling weekend projects, or lighting the backyard. Choose our outdoor extension cord designs for safe, dependable power in any season.
Use In Outdoor Conditions
All of our extension cords are rated for outdoor use.
What can Watt's Wire extention cords be used to power?
Our outdoor extension cords can be used with power tools, lights, air compressors, space heaters, freezers, refrigerators, outdoor equipment, generators, & many more!
How durable are Watt's Wire extension cords?
Our outdoor extension cord jackets are enforced with strength-adding poly strands, and the exterior is coated with clear vinyl to stand up to the heaviest day-to-day use.
Can Watt's Wire cords be used outdoor?
All of our cord jackets are weather and outdoor rated. As with all extension cord ends, be sure to keep the connections dry.
Shop Our Outdoor Power Cords
Heavy Duty Extension Cord
Our outdoor extension cords use heavy copper wire to minimize voltage drop.
Velcro Storage Straps
Extension Cord Ends
Pink Extension Cords
GFCI Extension Cords
Extreme Flexible Rubber Cords
10 Gauge Extension Cord
Green Outdoor Extension Cords
Black Extension Cords
White Extension Cords
12/3 Heavy Duty Extension Cord
Extension Cord 10+ ft
Extension Cord Waterproof
Short Extension Cord
Extension Cord Reel