Which Extension Cords Brand Wins?
2022 test15 productsGadgets & Tech

Which Extension Cords Brand Wins?

In our test we compared 15 extension cords options head to head. US Wire (14 gauge) came out on top. See the measured results, the runner-up, the budget pick, and a link to the full test video.

The verdict
US Wire (14 gauge)
Winner

US Wire (14 gauge)

Price shown in test: $53

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Bergen Industries
Runner-up

Bergen Industries

Price shown in test: $40

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Vanguard (Harbor Freight)
Budget pick

Vanguard (Harbor Freight)

Price shown in test: $20 (Harbor Freight)

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The quick take

The short version of why each pick lands where it does, built straight from the measured results.

WinnerUS Wire (14 gauge)$53

just looking at average finish ranking, US Wire came out on top with an average finish ranking of four

Best in 1 of 5 measurements, including Puncture Resistance.

Runner-upBergen Industries$40

Placed top three in 2 of 4 measurements.

Budget pickVanguard (Harbor Freight)$20 (Harbor Freight)

The measured results

Every number below is read straight from the test. Products are listed in the order they finished.

Blade Fold Strength

  • 1US Wire 14 gauge

    threw in the towel early at 4.7 kg or just over 10 lb

  • 2Bergen Industries

    moved into the lead at that point in testing with 18.7 kg or just over 41 lb, finished second overall in the final blade strength ranking at 41.3 lb

  • 3Vanguard
    just over14 kg

    or 30 lb

  • 4Project Source 16 gauge

    folded at only 9.5 lb, weakest blade of all cords tested, using a thin folded metal blade design

  • 5Woods

    folded at 9.4 kg or almost 21 lb, could not keep up with Vanguard

  • 6Yellow Jacket 14 gauge
    12 kg2nd

    moved into second place behind Vanguard at that point

  • 7Southwire 14 gauge

    almost a full kilogram stronger than Yellow Jacket, moving into second place at that point

  • 8Southwire 12 gauge

    gave up at just under 6 kg or around 13 lb, using a folded blade design like Project Source and US Wire 14 gauge

  • 9Husky
    13.3 kg

    or 29.3 lb, about the same as Vanguard

  • 10Utilitech

    moved into the lead at that point with almost 18 kg or around 39.5 lb; finished third in the final blade strength ranking

  • 11Snow Joe
    14.5 kg2nd

    or about 32 lb, moved into second place at that point

  • 12Flexzilla Pro
    12.5 kg

    or around 27.5 lb

  • 13Go Green
    17.1 kg3rd

    moved into third place at that point; finished fourth in the final blade strength ranking at 37.8 lb

  • 14US Wire Extreme

    did extremely well at 21 kg, taking the lead from Bergen Industries; won the final blade strength ranking outright at 46.4 lb

  • 15Yellow Jacket 10 gauge
    14.5 kg

    described as good but not directly comparable since it is a different gauge

Socket Grip Strength

  • 1US Wire 14 gauge
    4,502 g

    about average

  • 2Bergen Industries
    5,202 g
  • 3Vanguard
    6,318 g

    could not hang on quite as well as Project Source

  • 4Project Source 16 gauge
    7,414 g4th

    (about 16.3 lb), fourth best in the final socket grip ranking

  • 5Woods
    4,620 g

    could not get a good grip on the blades

  • 6Yellow Jacket 14 gauge
    4,454 g

    about the same as Woods

  • 7Southwire 14 gauge
    8,818 g

    moved into first position at that point; final ranking had it on top overall at 19.4 lb

  • 8Southwire 12 gauge
    2,958 g

    threw in the towel early

  • 9Husky
    3,682 g

    a little below average

  • 10Utilitech
    4,418 g

    performed better than Husky

  • 11Snow Joe
    8,026 g2nd

    made Southwire a little nervous, moved into second place at that point; finished second in the final socket grip ranking at 17.7 lb

  • 12Flexzilla Pro
    5,668 g

    a little above average; finished fifth in the final socket grip ranking at 12.5 lb

  • 13Go Green
    2,968 g

    got going a little too soon (weak grip)

  • 14US Wire Extreme
    3,454 g

    about 1,000 g below average

  • 15Yellow Jacket 10 gauge
    5,186 g

Cord End Separation Or Tensile Break

  • 1US Wire 14 gauge

    moved into a commanding lead at 367 lb; the cord itself broke before the cord end separated, best of the 14 gauge cords

  • 2Bergen Industries

    cord end separated at 201 lb; tensile strength until the cord broke was 319 lb

  • 3Vanguard

    tore loose at 192 lb in the plug separation test; made it to 321 lb before the wires began breaking in the tensile strength test

  • 4Project Source 16 gauge

    the wire broke before the plug end separated, at 190 lb

  • 5Woods

    cord end came loose at 236 lb, moving into first place over Vanguard at that point; tensile strength until the cord broke was 334 lb, a little better than Vanguard

  • 6Yellow Jacket 14 gauge

    cord end came loose at 319 lb, moving into the lead over Woods at that point; tensile strength until the cord broke was 423 lb, moving into first place at that point

  • 7Southwire 14 gauge

    cord end separated at 202 lb, 10 lb better than Vanguard's plug separation figure; tensile strength until the cord broke was only 241 lb, last place among the 14 gauge cords on this test

  • 8Southwire 12 gauge

    cord end held on longer than the 14 gauge Southwire at 288 lb; tensile strength until the cord broke was 393 lb

  • 9Husky

    moved into the lead at 346 lb before the cord tore away from the plug; the cord itself broke at 339 lb, about the same as the prior test

  • 10Utilitech

    cord end outlasted the cord, meaning the wire itself broke first, at 311 lb

  • 11Snow Joe

    cord end outlasted the cord, meaning the wire itself broke first, at 278 lb

  • 12Flexzilla Pro

    made it to 257 lb before the cord broke away from the cord end; a separately stated tensile strength figure of 291 lb also appears in the transcript for this brand, the two numbers are not clearly reconciled

  • 13Go Green

    cord end gave up at 169 lb; tensile strength until the cord broke was 260 lb, described as made of a softer plastic than most other brands

  • 14US Wire Extreme

    cord end separated at 164 lb; tensile strength until the cord broke was 258 lb, described as not offering very much tensile strength for a thermoplastic elastomer

  • 15Yellow Jacket 10 gauge

    cord finally broke at 968 lb, by far the strongest tensile figure recorded in the test

Overall Average Finish

  • 1US Wire 14 gauge

    came out on top with an average finish ranking of 4, the best of the 14 gauge cords

  • 2Bergen Industries

    averaged 4.4, second best of the 14 gauge cords

  • 3Vanguard

    not among the top five average finish figures given, but final socket grip ranking placed it fourth at 13.9 lb

  • 4Project Source 16 gauge

    not among the top five average finish figures given

  • 5Woods

    not among the top five average finish figures given

  • 6Yellow Jacket 14 gauge

    not among the top five average finish figures given

  • 7Southwire 14 gauge

    not among the top five average finish figures given

  • 8Southwire 12 gauge

    not among the top five average finish figures given

  • 9Husky

    averaged 4.8, fourth best of the 14 gauge cords

  • 10Utilitech

    averaged 4.7, third best of the 14 gauge cords

  • 11Snow Joe

    not among the top five average finish figures given

  • 12Flexzilla Pro

    averaged 5.1, fifth best of the 14 gauge cords

  • 13Go Green

    not among the top five average finish figures given

  • 14US Wire Extreme

    not among the top five average finish figures given, but singled out separately as best for cold weather use

  • 15Yellow Jacket 10 gauge

    not included in the 14 gauge average finish ranking

Abrasion Resistance

  • 1US Wire 14 gauge
    17.6 seconds

    better than average

  • 2Bergen Industries
    22.7 seconds2nd

    second best of the 14 gauge cords

  • 3Vanguard
    12.3 seconds
  • 4Project Source 16 gauge
    5.6 seconds

    the weakest jacket of all cords tested

  • 5Woods
    14 seconds

    moved into the lead over Vanguard at that point, has a hard rubber jacket

  • 6Yellow Jacket 14 gauge
    15 seconds

    better than Woods

  • 7Southwire 14 gauge
    8 seconds

    described as pretty soft and thin

  • 9Husky
    28.7 seconds

    twice as long as the competition, best of the 14 gauge cords on this test

  • 10Utilitech
    17 seconds
  • 11Snow Joe
    10 seconds

    jacket described as soft and thin

  • 12Flexzilla Pro
    14.3 seconds

    held up well despite being very soft and flexible

  • 13Go Green
    12.3 seconds

    described as soft and flexible like Flexzilla

  • 14US Wire Extreme
    20.2 seconds

    despite being soft and flexible

  • 15Yellow Jacket 10 gauge
    1 minute 11 seconds

    (71 seconds), by far the longest, though the presenter notes this is not a fair comparison due to the heavier gauge

  • 8Southwire 12 gauge
    not tested

Cold Flex Rating

  • 1US Wire 14 gauge

    not specifically singled out at either temperature in the transcript

  • 2Bergen Industries

    not specifically singled out at either temperature in the transcript

  • 3Vanguard

    not specifically singled out at either temperature in the transcript

  • 4Project Source 16 gauge

    rated 1 (best) at 70 degrees Fahrenheit

  • 5Woods

    not specifically singled out at either temperature in the transcript

  • 6Yellow Jacket 14 gauge

    the only cord jacket in the whole test that cracked in the minus 40 degree Fahrenheit test

  • 7Southwire 14 gauge

    rated 1 (best) at 70 degrees Fahrenheit; rated 3 (distant second tier) at minus 40 degrees Fahrenheit

  • 8Southwire 12 gauge

    rated 3 (distant second tier) at minus 40 degrees Fahrenheit

  • 12Flexzilla Pro

    rated 1 (best) at 70 degrees Fahrenheit; rated 3 (distant second tier) at minus 40 degrees Fahrenheit

  • 13Go Green

    rated 1 (best) at 70 degrees Fahrenheit; rated 3 (distant second tier) at minus 40 degrees Fahrenheit

  • 14US Wire Extreme

    rated 1 (best) at 70 degrees Fahrenheit; by far the best at minus 40 degrees Fahrenheit, the only cord rated 1 at that extreme temperature and very easy to work with

  • 9Husky
    not tested
  • 10Utilitech
    not tested
  • 11Snow Joe
    not tested
  • 15Yellow Jacket 10 gauge
    not tested

Puncture Resistance

  • 1US Wire 14 gauge
    3,268 g

    the best of all cords tested

  • 2Bergen Industries

    not among the top four figures given

  • 3Vanguard

    not among the top four figures given

  • 6Yellow Jacket 14 gauge
    1,599 g4th

    fourth best of the top figures given

  • 9Husky
    1,989 g2nd

    second best of the top figures given

  • 12Flexzilla Pro
    1,788 g3rd

    third best of the top figures given

  • 4Project Source 16 gauge
    not tested
  • 5Woods
    not tested
  • 7Southwire 14 gauge
    not tested
  • 8Southwire 12 gauge
    not tested
  • 10Utilitech
    not tested
  • 11Snow Joe
    not tested
  • 13Go Green
    not tested
  • 14US Wire Extreme
    not tested
  • 15Yellow Jacket 10 gauge
    not tested

Voltage Drop 14 Ga Showdown

  • 1US Wire 14 gauge

    came out on top with a voltage drop of only 4.36 V

  • 6Yellow Jacket 14 gauge
    4.45 V

    drop, close to the top of the 14 gauge group

  • 10Utilitech
    4.4 V

    drop, close behind US Wire

  • 11Snow Joe
    4.44 V

    drop

  • 2Bergen Industries
    not tested
  • 3Vanguard
    not tested
  • 4Project Source 16 gauge
    not tested
  • 5Woods
    not tested
  • 7Southwire 14 gauge
    not tested
  • 8Southwire 12 gauge
    not tested
  • 9Husky
    not tested
  • 12Flexzilla Pro
    not tested
  • 13Go Green
    not tested
  • 14US Wire Extreme
    not tested
  • 15Yellow Jacket 10 gauge
    not tested
All measurements (1 more)+

Voltage Drop

  • 4Project Source 16 gauge
    7 V

    drop over 5 minutes with four halogen lights connected, wire temperature rose about 33 degrees Fahrenheit (69.8 to 102.8 F), over 100 W converted to heat instead of reaching the lights

  • 8Southwire 12 gauge
    2.85 V

    drop, around 2 V better than the 14 gauge wires, temperature rose only 1.9 degrees Fahrenheit

  • 15Yellow Jacket 10 gauge
    about1.9

    to 1.94 V drop, wire temperature remained very cool

  • 1US Wire 14 gauge
    not tested
  • 2Bergen Industries
    not tested
  • 3Vanguard
    not tested
  • 5Woods
    not tested
  • 6Yellow Jacket 14 gauge
    not tested
  • 7Southwire 14 gauge
    not tested
  • 9Husky
    not tested
  • 10Utilitech
    not tested
  • 11Snow Joe
    not tested
  • 12Flexzilla Pro
    not tested
  • 13Go Green
    not tested
  • 14US Wire Extreme
    not tested

How it was tested

  • blade fold strength test
  • extension cord socket grip strength test
  • plug to cord end separation force and tensile strength until cord breakage
  • belt sander jacket abrasion resistance test with a 5 lb weight
  • voltage drop and temperature rise test with four halogen lights over 5 minutes
  • cold temperature flexibility rating at 70 and minus 40 degrees Fahrenheit
  • jacket puncture resistance test

just looking at average finish ranking, US Wire came out on top with an average finish ranking of four

From the test video verdict.

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