Best Flat Extension Cord for Under Rug (2026): 5 Picks

NTONPOWER lists this as a 15 ft flat extension cord with 4 AC outlets, 2 USB-A ports and 1 USB-C port, with a stated USB output of 2.4A/12W. The 45-degree flat plug is 0.31 in thick, the strip has two mounting holes, and the listing claims overload protection with an automatic trip, 1080 J of surge protection and a fire-resistant ABS+PC shell the maker rates to 1382 F. The spec table lists the cord length as 25 ft, but the title, bullets and 180 in item length all say 15 ft, so we trust 15 ft; it also lists USB totals of both 2 and 3, and the title's 2 USB-A plus 1 USB-C is the more specific claim. The listing states an 18-month product warranty for refund or replacement and includes a cable tie.

Who it's for: a home worker whose desk sits far from the only outlet and who wants outlets plus USB in one under-rug run. Who should skip it: anyone whose devices need more than the stated 10 A and 1250 W rating, or anyone who wants a UL or ETL listing, which is not stated.

Its Office Score of 9.7/10 comes from performance 28/35, build 21/25, value 21/25, safety 9/10 and warranty 3/5: 82 of 100 points, placed on our 9.2 to 9.8 scale.

Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.

What this listing states. Overload protection with automatic trip and 1080 J surge protection are stated, so safety scores 9 of 10. 18 months product warranty for refund or replacement. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.

Surge protector limits. Look for a UL 1449 listing, never plug one strip into another, keep the total load under the stated rating, and replace the unit after a major surge or when its indicator says protection has ended.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

Maximm lists a 10 ft flat extension cord with a 360-degree rotating flat plug and 3 grounded outlets on 16 AWG, 3-conductor wire. The cord is rated 13 A at 125 V and 1625 W, uses a grounded NEMA 5-15P plug to NEMA 5-15R outlets, and is UL certified for indoor use. The listing states the rotating plug keeps the second outlet on a duplex receptacle free and suits tight spaces behind furniture, bookshelves and desks. It states a limited 1-year warranty that excludes misuse and normal wear and tear.

Who it's for: someone who needs power behind furniture with the second outlet left free. Who should skip it: anyone who needs USB ports, mounting holes or more than 3 outlets.

Its Office Score of 9.6/10 comes from performance 29/35, build 20/25, value 20/25, safety 8/10 and warranty 3/5: 80 of 100 points, placed on our 9.2 to 9.8 scale.

Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.

What this listing states. UL Certified; grounded 3-prong plug rated 13 A and 1625 W, so safety scores 8 of 10. Limited 1-Year Warranty. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.

Surge protector limits. Look for a UL 1449 listing, never plug one strip into another, keep the total load under the stated rating, and replace the unit after a major surge or when its indicator says protection has ended.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

DEWENWILS lists a 15 ft ultra-thin flat extension cord, 0.19 in thick, with 3 grounded outlets on 16/3 SPT-3 wire. The cord is rated 13 A at 125 V and 1625 W, is ETL listed, and the listing states a full copper core, a flame-retardant PVC outer layer and a reinforced strain relief. The listing says the cord can be hidden under carpets, pass under doors and sit behind sofas, bedside tables and dressers. No warranty term is stated.

Who it's for: someone who wants the thinnest cord here to disappear under a rug. Who should skip it: anyone who needs USB charging, a stated warranty or more than 3 outlets.

Its Office Score of 9.6/10 comes from performance 30/35, build 21/25, value 21/25, safety 9/10 and warranty 0/5: 81 of 100 points, placed on our 9.2 to 9.8 scale.

Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.

What this listing states. ETL Listed; flame-retardant PVC jacket and strain relief are stated, so safety scores 9 of 10. No warranty term, so warranty scores zero. See How We Pick.

Surge protector limits. Look for a UL 1449 listing, never plug one strip into another, keep the total load under the stated rating, and replace the unit after a major surge or when its indicator says protection has ended.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

Woods, sold under the Coleman Cable brand, lists a 13 ft beige slimline flat plug extension cord with 2 three-wire outlets. The cord is rated 13 A at 125 V and 1625 W and is UL listed. The bullets say the slimline design keeps the cord close to the wall so furniture can sit against it, and name clocks, lamps and lighting as the intended indoor uses. The listing states a 180-day limited warranty.

Who it's for: someone who needs a simple flat cord for a lamp or two near a wall. Who should skip it: anyone who needs 3 or more outlets, USB ports or the thinnest cord profile.

Its Office Score of 9.5/10 comes from performance 26/35, build 19/25, value 19/25, safety 7/10 and warranty 2/5: 73 of 100 points, placed on our 9.2 to 9.8 scale.

Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.

What this listing states. UL listed; 3-wire grounded cord rated 13 A and 1625 W, so safety scores 7 of 10. 180 Days Limited Warranty. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 2 of 5. See How We Pick.

Surge protector limits. Look for a UL 1449 listing, never plug one strip into another, keep the total load under the stated rating, and replace the unit after a major surge or when its indicator says protection has ended.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

Electriduct lists a 5 ft black lay flat extension cord with a built-in low profile cable protector and a duplex receptacle at one end. The cord is 3-prong grounded, rated 13 A at 125 V and 1625 W, and UL rated. The listing says the unit safely runs power across doorways and hallways and includes 2 ft of additional cable for easy outlet access. No warranty term is stated.

Who it's for: someone crossing a doorway or hallway where a bare cord would be a trip hazard. Who should skip it: anyone who needs a longer run, USB ports or a stated warranty.

Its Office Score of 9.5/10 comes from performance 27/35, build 19/25, value 20/25, safety 7/10 and warranty 0/5: 73 of 100 points, placed on our 9.2 to 9.8 scale.

Figures as published on the retailer listing, collected 22 October 2026. Performance figures are manufacturer rated.

What this listing states. UL Rated; 3-prong grounded plug rated 13 A and 1625 W, so safety scores 7 of 10. No warranty term, so warranty scores zero. See How We Pick.

Surge protector limits. Look for a UL 1449 listing, never plug one strip into another, keep the total load under the stated rating, and replace the unit after a major surge or when its indicator says protection has ended.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.