The 12 Best Heavy Duty Indoor Extension Cords (2022 reviews)

heavy duty indoor extension cords
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There are plenty of options available while buying heavy duty indoor extension cords in the market right now, and if you're confused regarding which one to go for, This page is just for you.

Our review process:

Our Top Picks:

Best Overall:
Buy: Go Green Power Inc Heavy Duty Indoor Extension Cord
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Best For Freezer:
Buy: Powtech Heavy Duty Indoor Extension Cord
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Best For For Hair Dryer:
Buy: Cable Matters Heavy Duty Indoor Extension Cord
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Best For Space Saver:
Buy: Firmerst Heavy Duty Indoor Extension Cord
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Best For Fridge:
Buy: Electes Heavy Duty Indoor Extension Cord
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Best For Office Use:
Buy: Iron Forge Cable Heavy Duty Indoor Extension Cord
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Best For Garden:
Buy: Mshyet Heavy Duty Indoor Extension Cord
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Best For Household Appliances:
Buy: Ultrapro Heavy Duty Indoor Extension Cord
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Best With Product Description:
Buy: Amazon Basics Heavy Duty Indoor Extension Cord
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Best For Light Duty:
Buy: Woods Heavy Duty Indoor Extension Cord
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Best For Plugging In Large Appliances:
Buy: Unvert Heavy Duty Indoor Extension Cord
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Best For Perfect Fit:
Buy: Clear Power Heavy Duty Indoor Extension Cord
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Best Overall: Go Green Power Inc Heavy Duty Indoor Extension Cord

Go Green Power Inc Heavy Duty Indoor Extension Cord
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The best part: go green power and heavy duty indoor extension cord costs reasonable and it is available to ship in 24 hours. The Go green power and heavy duty indoor extension cord bought again and it is great for rough use. Make sure this fits by entering your model number. This cord is etl listed and certified, which is compliant with the rigorous standards for a hard - service thermoplastic cable rated for 300 volts.

The cord is designed for very nice quality and it is good for good connection. Most importantly, the go green power and heavy - duty indoor extension cord comes with contractor grade and it is great for peace of mind.

Almost all buyers opine that the cord fits the bill fine and also comes with a lighted end. Further, a few strongly agree that the cord works well with electric power and yard equipment. Moreover, a few say that this cord will only work with 117 ( aka 110 or 120 ) vac - not 234 ( aka 240 ) vac.

Top Customer Quotes:
  • This is getting the job done.
  • This can vouch for sturdy construction and it is built with heavy duty power.
  • This is also moisture resistant, abrasion resistant, and durable, even with prolonged exposure to sunlight.
  • This is highly recommend, is used for great products and it makes for a great buy.

Best For Freezer: Powtech Heavy Duty Indoor Extension Cord

Powtech Heavy Duty Indoor Extension Cord
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Powtech line of cords comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Powtech Heavy Duty Indoor Extension Cord is designed for convenience, durability and safety. Use these cords to extend your 3-prong outlet for use with computers, copiers, fax machines and other three - conductor office equipment. Moreover, the cord can be used in any room in the house, even the kitchen and the laundry room.

The cord right now, is extremely heavy and it is designed with heavy - duty vinyl insulation. Above all, the powtech heavy - duty indoor extension cord is easy to find, makes for nice quality and it is select.

Most buyers quickly discovered that the cord is made for extended outdoor use. Moreover, they also found that the cord was great for that as well and always stayed cool while under a heavy load. And, a few say that the cord comes in, which is a plus. In conclusion, most buyers found the cord suits best, and no one questions it.

Top Customer Quotes:
  • This is used for new refrigerators long.
  • This is great with anything within the capacity.
  • This is important, it is for solid quality and it is industrial.
  • This is modern, fits right for the right size and it is suitable for light weight.

Best For For Hair Dryer: Cable Matters Heavy Duty Indoor Extension Cord

Cable Matters Heavy Duty Indoor Extension Cord
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Cable Matters offers a variety of cords for personal choice and yet maintains quality in all the variants. The cable heavy duty indoor extension cord comes with headquarters in Southborough, Massachusetts, offers a complete line of cables, adapters, docking stations, and networking products for the home, office, and data center. The extension cords extend the length of an existing power cord. The indoor extension cord connects an existing cable to a standard 3 pronged 120v ac outlet receptacle.

The cord allows for enough length, is very happy and it is perfect for a ceiling - mounted projector. Finally, the cable is a heavy - duty indoor extension cord. buy again and it is great with good packaging.

Almost all customers agree that the cord is designed for outside use and has an added chemical to block up light. And, a few also found that the cord had a ground tab (third prong) on the plug. Moreover, they strongly agree that the cords are pretty thick for an electrical cord. In short, buyers found this to be one of the best cords for daily purposes.

Top Customer Quotes:
  • This is used for low wattage loads, led lights for the most part.
  • This is yellow and it is made with great extension cords.
  • This is a 13 amp cable .. it will handle quite a load.
  • This works for next time and it is suitable for heavy duty power.

Best For Space Saver: Firmerst Heavy Duty Indoor Extension Cord

Firmerst Heavy Duty Indoor Extension Cord
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If you often find yourself confused about convenient and suitable cord, firmerst heavy - duty indoor extension cord is your solution. The first heavy duty indoor extension cord is best for high temperature,ss is compact, it is made with good length and has industrial design. Designed for tight spaces like behind furniture, bookshelves, desks or anything which is close to the wall not allowing you to use the standard outlet. Further, it is made from high quality ul &cul listed approved material, no smell.

Most importantly, the first heavy - duty indoor extension cord pulls out, It is great for nice heavy duty and has an efficient design.

Almost all customers quickly discovered that the cord has different ones to choose from, that's why the picture shows the 13a version. Moreover, they also found that the cord is built with good capacity. Further, they strongly agree that the heater works perfectly while plugged into this extension cord and it does not overheat. Consequently, buyers were very happy to recommend it to friends and would-be buyers.

Top Customer Quotes:
  • The cord is rated at 15amps and should be capable of.
  • Manufacturer says: extends the AC outlet with our 10.
  • This will depend on the wattage of the vacuum.
  • This is used for extra length, it is strong enough and has a good design.

Best For Fridge: Electes Heavy Duty Indoor Extension Cord

Electes Heavy Duty Indoor Extension Cord
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Next on the list, we've got yet another cord that manages to win our hearts. It's the electric heavy - duty indoor extension cord and it's widely considered as one of the most convenient cords you can buy. The Electes Heavy Duty Indoor Extension Cord is very sturdy and it is used for extension cord for outdoor use. Make sure this fits by entering your model number. Also, the cord is highly recommended and it is built for 12 gauge.

The cord is great for use as a mini power strip with a long cord. Further, this is good for super heavy duty and it is very durable. Lastly, the electes heavy duty indoor extension cord is rated current, allows for good size and it is very solid.

Almost all buyers agree that the cord will probably depend on how many inflatables there are and if they have to be continuously inflated. In addition, they say that the cord is good for 840 watts max or 7 amps at 120 vac. Further, a few strongly agree that this cord is very strong and well made.

Top Customer Quotes:
  • This is nice heavy, buy again and it is pvc.
  • These fit the bill, have power and it is great for the perfect size.
  • High quality: great, durable, ul listed, 13amp, 125volt, 1625 watts.
  • This very long, is good for space savers and it has a rotating plug.

Best For Office Use: Iron Forge Cable Heavy Duty Indoor Extension Cord

Iron Forge Cable Heavy Duty Indoor Extension Cord
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We would, of course, be remiss if we didn't mention Iron Forge Cable Heavy Duty Indoor Extension Cord for daily purpose. The iron forge cable heavy dutyindoor extension cord is perfect for outdoors and it meets expectations. The manufacturer says: If anything ever goes wrong with this, we will replace it with a new item. And, this is great for gardening, landscaping, or powering any household appliance.

Most importantly, the iron forge cable heavyduty indoorextension cord works well. is built for good construction and it has reinforced blades.

Almost all customers quickly discovered that the cord does it'sssss job with zero issues. Also, they strongly agree that the cord is a very good quality and good color 10 ft. extension cord for use in an indoor project. Moreover, a few strongly agree that the cord shows good quality and resilience and absolutely no bleed through or hum. In conclusion, the tone of buyers is very positive and we believe that the cord suits the purpose.

Top Customer Quotes:
  • You will love the white cable blends into your home’s decor.
  • This holds up well, is extremely durable and it worked out great.
  • This can safely handle 1200 watts.
  • This is made from sj cable and quality molded connectors.

Best For Garden: Mshyet Heavy Duty Indoor Extension Cord

Mshyet Heavy Duty Indoor Extension Cord
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Mshyet offers a variety of cords for personal choice and yet maintains quality in all the variants. The Mshyet Heavy Duty Indoor Extension Cord is applicable, It is great for heavy duty construction and has a solid design. You can plug all of your outdoor decorations, accessories, and tools into one. These three-prong extension cords are good for indoor and outdoor use.

The cord is very impressive, is PVC, it is feel confident and has a sturdy design. Most importantly, the mshyet heavy duty indoor extensioncord is used for 12 gauge, It is too bulky and has a great design.

Most buyers agree that the cord is easy to keep right on the sprayer. And, a few also found that the cord has been there for about two weeks and is functioning well. And, they strongly agree that the 12/3 wiring used in the extension cord combined with its short length should safely handle the amperage load of the two combined appliances if they are at or below 20 amps. Overall, buyers found this to be one of the best cords for daily purposes.

Top Customer Quotes:
  • This is perfectly, sturdy and durable in the rain outside.
  • This is ideal for holiday decorations, landscaping projects, exterior lighting, home improvement projects& more.
  • This is made of stranded soft-drawn copper which conducts power without the danger of over-heating.
  • This saves space, it fits perfectly with perfect length and has a strain relief design.

Best For Household Appliances: Ultrapro Heavy Duty Indoor Extension Cord

Ultrapro Heavy Duty Indoor Extension Cord
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The features department is where the ultrapro heavy - duty indoor extension cord truly manages to shine. The Ultrapro Heavy Duty Indoor Extension Cord is highly recommend, works well for really heavy duty, It allows for multiple use and has a great design. This three-prong wall adapter surge protector provides you with extra power sources for your household appliances, lamps, tools, seasonal lighting or electronics. This heavy - duty extension cord triples the output of any grounded AC outlet.

Most importantly, the ultrapro heavy duty indoor extension cord is great for plenty of power, is for only a single outlet, It is used for outdoors and has a perfect design.

Almost all customers opine that the cord allows even oddly shaped/large plugs to all fit together. And, they strongly agree that the cord is a nice, seemingly well made extension cord. Moreover, they say that the cord is a nice hexagon shaped power hub with 5 outlets while the 6th one is for its cord. To sum up, for most buyers, Ultrapro product was just what they wanted.

Top Customer Quotes:
  • This is the thickness of the TV cable and good quality.
  • This is a heavy-duty, rugged 3 outlet extension cord.
  • This comes with 2 cords the 1 pack only 1.
  • This is a great price for a long, grounded cord.

Best With Product Description: Amazon Basics Heavy Duty Indoor Extension Cord

Amazon Basics Heavy Duty Indoor Extension Cord
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The amazon basic heavy duty indoor extension cord is capable of outshining several other cords featured in this list in overall features in its price range. The amazon basic heavyduty indoor extension cord needed that length, is great for the garage, It can be trusted for quality item and has a solid design. Make sure this fits by entering your model number. The cord includes a tough vinyl sheath and sturdy plug connectors.

Finally, the Amazon Basics Heavy Duty Indoor Extension Cord allows for very good extension, is very safe, it is very useful and has a water resistant design.

Most buyers agree that the cord is easy to rupture or anything. And, they also found that the cord could probably give you a better answer. Also, they also found that the male and female ends, plus the cable itself, are branded " asap. To sum up, most customers found the cord suits best, and no one questions it.

Top Customer Quotes:
  • This is perfect for “almost there” cords.
  • This is short, which lets you steadily handle the power from an air conditioner.
  • It looks like your plug is good to 300 volts.
  • The entire cord, including the ends, is very well made.

Best For Light Duty: Woods Heavy Duty Indoor Extension Cord

Woods Heavy Duty Indoor Extension Cord
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The wood heavy - duty indoor extension cord's superior materials makes sure that it ages well with use. The wood heavy - duty indoorextension cord works well very long, It is made for outdoor use and has a great design. The flat plug lays flush against the wall, allowing you to still push furniture up against the wall. The smart cord safety cord alarm and light are triggered at temperatures between 125.

Finally, the wood heavy - dutyindoor extension cord allows the user to safely place furniture against the baseboard.

Almost all buyers agree that the cord is more substantial than a typical house extension cord. Also, a few say that the cord is good that nothing happened. And, they say that the white cord is so obvious with no way to hide it being white. In short, many customers have used the wood heavy - duty indoor extensioncord for more than a few months without letup, and it shows no sign of giving up.

Top Customer Quotes:
  • This allows you to pull the plug before the circuitry can cause a fire.
  • This is fine for lamps, a clock radio, a cell phone charger, etc.
  • The safety cord that helps protect your home.
  • This is used for temporary power not permanent installation.

Best For Plugging In Large Appliances: Unvert Heavy Duty Indoor Extension Cord

Unvert Heavy Duty Indoor Extension Cord
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We would, of course, be remiss if we didn't mention Unvert Heavy Duty Indoor Extension Cord for daily use. The unvert heavy duty indoor extension cord allows the cord to remain flush with the wall in tight spaces. Grip grooves allow easy connection and disconnection of the cord. In addition, it works for other appliances, it buy again and has a solid design.

The cord is ideal for plugging in large appliances such as washers, dryers, or refrigerators, power tools and other major appliances. Most importantly, the unvert heavy duty indoor extension cord is perfect for air conditioners and has a flexible design.

Most customers agree that the cord can easily handle a 1500 watt space heater. In addition, a few strongly agree that the cord is good for an air conditioner. And, a few say that this extension cord is rated for 15 amps, 1875 watts, at 125 volts. Overall, at the price, they believe that they got a steal of a deal with it.

Why We Like This:
  • An Angle plug allows the cord to remain flush with the wall in tight spaces.
  • 1875 watts -15 amps/14 gauge/3 conductor wire - spt-3/125 volt. Ul listed.
  • Good investment for the long term.

Best For Perfect Fit: Clear Power Heavy Duty Indoor Extension Cord

Clear Power Heavy Duty Indoor Extension Cord
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The Clear Power Heavy Duty Indoor Extension Cord is capable of outshining several other cords featured in this list in overall features for the price point. The clear power heavy duty indoor extension cord comes with a 3-outlet connector. The power extension cord is ideal for electronic equipment in your home, office and dorm room. It is easy to power your lamps, portable fans, alarm clocks, laptops, small appliances and holiday lights. This clear power 3 - outlet office cord brings power to three items from one electrical outlet.

Most importantly, the clear power heavy duty indoor extension cord is really good, is safe to use, it looks great and has a portable design.

Almost all buyers found that the cord is used to connect a TV and a fire stick to a wall outlet. Further, they strongly agree that these are high heat - producing devices. Overall, many customers have used the clear power heavy duty indoor extension cord for more than a few months without letup, and it shows no sign of giving up.

Why We Like This:
  • Plug dimension: 1/2 inch thick low profile plug.
  • White cord blends into the environment in your home or any office workspace.
  • This is flame retardant, ultra flexible and abrasion resistant.
  • 100% pure copper conductors avoid the cable overheating from long-time use.