Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.
If you are running power to a shed, a gate motor, or a line of garden lights, the wire you bury is the one part of the job you never want to redo. The real question is simple: solid or stranded copper, and how much footage do you actually need? This guide answers both, using the manufacturers’ published specs and what verified buyers report after the trench is already closed.
I’m Mohammad Maruf — the founder and writer behind KitchPrep. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
Underground feeder cable is a buy-once, bury-once purchase, so getting the jacket, the conductor count, and the footage right the first time matters more than saving a few dollars. This breakdown of the 12/2 uf wire market covers the specs that actually decide the job.
Our Picks at a Glance


How To Choose The Best 12/2 UF Wire
Stranded or solid, 50 feet or 150, three conductors or two — those are the three calls that decide whether your outdoor run goes smoothly or sends you back to the store. Here is what each one changes on the job.
Solid vs Stranded Copper: The Flexibility Trade
Solid copper is one thick conductor per wire, which holds its shape and pushes straight through a trench. Stranded copper is many thin strands bundled together, so it bends around corners and feeds through conduit more easily. If your run is mostly straight, solid is fine. If it snakes around a foundation or pulls through pipe, stranded saves your patience.
Why 12-Gauge and 20 Amps Matter
The “12” in 12/2 means 12-gauge wire, which is the standard size for a 20-amp circuit — enough for outdoor outlets, landscape lighting, and small pumps. The “2” means two current-carrying conductors, plus a ground wire in most of these rolls, so you get a hot, a neutral, and a safety ground. Go thinner and you cap your ampacity; stay at 12 and you keep a 20-amp circuit available.
Direct Burial and the Jacket
UF-B stands for Underground Feeder, and that rating is what lets you drop the cable straight into a trench without running conduit first. The PVC jacket resists sunlight, moisture, and corrosion for both buried and above-ground exposure. Check for a sunlight-resistant and moisture-resistant jacket before you buy, because that is the layer doing the real work underground.
Quick Comparison
| Model | Best For | Length | Strands | Number of Wires | Amazon |
|---|---|---|---|---|---|
| FIRMERST 12/2 UF Wire 75ft★ Best Overall | Shed, pump, and landscape runs | 75 ft | Multi Strand | 3 | Amazon |
| PLESIU 12/2 UF-B 150ftBest for Long Runs | Long runs to gates and outbuildings | 150 ft | 2 | 3 | Amazon |
| Energeaster 12/2 UF-B 75FT | Shed power and garden post lights | 75 ft | 2 | 2 | Amazon |
| 12/2 UF-B Gray Solid 50 Ft | Small deck and lighting jobs | 50 ft | 1 | 3 | Amazon |
| FIRMERST Stranded Copper 50ft | Conduit pulls and short buried runs | 50 ft | 10 | 3 | Amazon |
In‑Depth Reviews
1. FIRMERST 12/2 UF Wire Outdoor Direct Burial Underground Feeder Cable 75ft
Our pick — over 4.5★ from 250+ verified ratings; the strongest balance of quality and price.
The 75-foot middleweight that powers a whole shed without leaving you short.
Most DIY outdoor runs land around 75 feet, and this FIRMERST roll hits that length with a jacket that is easy to handle. It uses a 12 AWG solid copper conductor (12 AWG means the wire is 2.05 mm thick, good for 20-amp circuits) with a ground wire, so you get the full three-wire setup — hot, neutral, and ground — for a 20-amp circuit running a shed, a pump, or a row of lights.
The specs back up its spot. This roll carries multi-strand copper under a PVC jacket rated 600 volts (600V means it can handle typical residential voltage) and ETL-listed for direct burial in dry or wet locations, so you can dig a trench, drop the cable, and backfill — no conduit run needed first. Compare it to the Energeaster above at the same 75-foot length: the FIRMERST has three wires versus the Energeaster’s two, so you are not choosing between length and conductor count. Compared to the 50-foot FIRMERST stranded roll below, this one gives you 50% more footage off the spool, which is the difference between one trench and two splices.
Owners keep coming back to the same three words: quality, value, and a jacket that holds up. The cable slides through conduit without fighting back, which is the gripe for most budget rolls in this category. The honest catch is durability at the copper itself — some owners find the conductors brittle if you over-bend them at the strip point, so leave a small service loop at each end and bend gently. The PVC jacket is UV- and corrosion-resistant, so the exposed run up to the shed wall holds up in direct sun.
What earns the top pick
- 75 ft gives you real footage for a house-to-shed run without splices
- ETL-listed for direct burial in dry or wet locations — no conduit required
- Three conductors plus ground wire for a complete 20-amp circuit
- 600-volt rated PVC jacket resists corrosion and UV exposure
Where it asks for care
- Copper can break if you over-bend it right at the strip point
- Multi-strand conductors need a firm twist before the wire nut
The pick for: anyone running power to a shed, pump, or landscape circuit who wants one roll to cover the whole trench. The 4.8-star score across 290 ratings makes it the safest bet in this lineup.
Look elsewhere if: your run is under 40 feet — the 50-foot rolls further down save you the leftover footage.
2. PLESIU 12/2 UF-B Wire, Underground Feeder and Direct Earth Burial Cable (150ft Cut)
Double the footage of the top pick, for the gate motor at the end of a long driveway.
If your run crosses a full yard, a 50-foot roll won’t cut it. This PLESIU roll arrives at 150 feet — twice the footage of the FIRMERST 50-foot stranded roll below — which is enough to reach a sliding gate motor, a far outbuilding, or split the run into multiple circuits off one spool. It carries two annealed (soft) copper conductors in 12-gauge (12 AWG means the wire is 2.05 mm thick), rated for 600 volts with an allowable ampacity of 20 amps (20 amps is the maximum current it can safely carry).
The soft copper is the practical detail. Soft copper bends with less fight than stiff solid wire, and owners describe the pull as easy to handle, which matters when you are threading 150 feet through conduit or around a foundation corner. The PVC-and-nylon jacket resists light and moisture, and it is rated for both indoor wet or corrosive locations and outdoor direct earth burial, so the same roll works above ground on the exposed run and underground in the trench.
Worth flagging honestly: one owner noted the insulation can run lighter than a big-box brand, with the jacket reading thinner on close inspection. For direct burial in a home trench that is rarely a problem, but if your code or inspector wants a specific exterior-grade jacket, verify before you dig. What wins people over is the value — the 4.8-star score across 287 ratings holds up, and the length-to-price ratio is the reason most buyers pick this roll over two shorter spools.
Where it wins: 150 ft of soft-copper 12-gauge on a single spool is the cleanest way to reach a far gate or outbuilding without a splice underground.
The jacket note: the sheathing can read thinner than some big-box brands, so inspect the run before backfilling if your job calls for a specific exterior grade.
Reach for this if: your run is genuinely long — 100 feet or more — and you want soft copper that threads through conduit without a fight.
skip it if: you only need to reach a nearby deck outlet; the shorter 50-foot rolls further down fit that job with less leftover.
3. Energeaster 12/2 UF-B 75FT Solid Underground Feeder Direct Burial Cable
A UL-listed 75-footer that shrugs off snow and summer sun on the same run.
If your climate swings hard, the temperature range on this cable is the detail that separates it. Energeaster rates the PVC jacket from -10℃ to 105℃, so it keeps working through a frozen winter and a baking summer without cracking — that is waterproof, sunproof, snowproof, and windproof coverage in the manufacturer’s own words. It runs 12 AWG solid copper across 75 feet, rated 600 volts and UL listed for safety and quality.
Compared to the top FIRMERST pick at the same 75-foot length, this roll carries two wires against the FIRMERST’s three. That is the trade you weigh here: you give up one conductor for the UL listing and the wide temperature range. The direct-burial rating still means no conduit, and the jacket handles indoor wet or corrosive spots as easily as buried runs to a shed, an outlet, or a string of garden post lights. Owners wiring a shed describe the pull as straightforward and clean, even when they expected direct burial cable to fight them the whole way.
The recurring gripe is the sheath itself. It is tough — that is the point — and a few owners find it stiff to strip without nicking the inner insulation, so a sharp utility knife and a shallow scoring angle are your friends. The 4.6-star score across 119 ratings reflects a cable that does its job; the stiffness is the cost of the durability. If you want the easiest strip, look at the stranded FIRMERST below instead.
Reasons buyers wire sheds with it
- UL listed, so it clears inspection in most jurisdictions
- -10℃ to 105℃ jacket range handles freezing winters and hot summers
- 75 ft with direct burial — no conduit needed
- Waterproof, sunproof, snowproof, and windproof jacket per the maker
What you trade for that
- Two conductors versus the three on the top pick
- Stiff sheath is harder to strip without nicking the inner insulation
Best matched to: a shed or post-light run in a climate with real temperature swings, where the UL listing and the wide operating range earn their place.
Think twice if: you need three conductors on the run — step up to the FIRMERST 75-footer instead.
4. 12/2 UF-B Wire Gray Solid Underground Feeder Cable (50 Ft)
The small-job roll — solid copper, three wires, and no wasted footage on a deck outlet.
For a deck outlet or a short run to a single fixture, buying 75 or 150 feet just leaves you storing a partial roll forever. This 50-foot roll is built for exactly that job. It packs 12 AWG solid copper across three conductors — more wires than the Energeaster above, which carries two — so you get a complete hot, neutral, and ground setup in a shorter length.
The safety specs are the quiet selling point. This cable is UL listed, flame retardant, and rated 600V and 90°C for both dry and wet conditions, so it works in wet, moist, and corrosive locations alike. The PVC jacket resists sunlight, moisture, and corrosion, and the direct-burial rating skips conduit on the run. For outdoor lighting, a small pump, or branch-circuit wiring on a deck, it covers the whole job in one roll.
What owners mention most is straightforward: quality copper at a fair price, with a jacket that handles the elements. The one recurring note is that the casing runs a little thinner than some other rolls — it does the job, but handle the strip end carefully so you do not score the copper. At 4.8 stars across 49 ratings, this is the roll to grab when the job is small and the trench is short.
Why it earns a spot: three conductors, UL listing, and flame-retardant 600V/90°C construction in a 50-foot length sized for small outdoor jobs.
Handle with care: the casing runs thinner than some competing rolls, so score gently at the strip point to protect the copper.
Made for: a deck outlet, a single light fixture, or any short buried run where a longer roll would just sit half-used on a shelf.
Not the fit if: you are wiring a distant shed — the 75- and 150-foot rolls above are built for that reach.
5. FIRMERST 12/2 UF Wire Outdoor Direct Burial Stranded Copper Cable 50ft
Ten strands of copper that bend where solid wire refuses to.
Stranded copper is the fix for the job that fights back. This roll runs 12 AWG stranded copper (12 AWG means the wire is 2.05 mm thick) across 50 feet — ten strands per conductor against the single solid strand you get in the budget 50-foot roll above — so the cable bends around corners and threads through conduit far more easily. It carries a ground wire for a complete circuit and uses a tough grey PVC jacket rated for direct burial in dry or wet locations.
Buyers who need flexibility notice it right away: stranded wire is simply easier to work with than solid, and this roll earns its keep on pulls through pipe or around tight foundation corners. The grey jacket resists UV and moisture, so it holds up on the exposed climb up a shed wall and in the buried stretch. One buyer ran it outside for three outlets and a lamp post with no trouble, and another threaded it underground to feed two separate yard circuits without issue.
The honest trade is the strip. Stranded copper takes more care to twist and terminate cleanly than solid, and the tough outer skin on this roll earns the occasional “hard to strip” note. For conduit pulls and short buried runs where bending matters, the flexibility is worth the extra two minutes at each end.
Why the flexibility wins
- 10-strand copper bends easily where solid wire resists
- Tough grey PVC jacket rated for direct burial in dry or wet locations
- Slides through conduit without the fight of stiff solid wire
- Ground wire included for a full circuit
What to expect
- Stranded copper needs a careful twist before termination
- 50 ft is the shortest roll here — measure your run first
Pick this one for: conduit pulls and short buried runs where the cable has to bend, because ten strands of copper handle corners that solid wire fights.
Check the length first: 50 feet goes fast on a long run, so measure before you buy.
Understanding the Specs
What “12/2 UF” Actually Means
The number before the slash is the wire gauge — 12, which is the standard size for a 20-amp circuit. The number after the slash is how many current-carrying conductors the cable has, here two. UF stands for Underground Feeder, the rating that lets the cable go straight into a trench. The “B” in UF-B marks the updated jacket specification for direct burial. Read the label as: 12-gauge, two conductors, made for the ground.
Solid vs Stranded Copper
Solid copper is one thick conductor per wire. It holds a shape, pushes straight through a trench, and terminates simply. Stranded copper is many thin strands bundled together — the two FIRMERST rolls here list very different strand counts — and it bends around tight corners and feeds through conduit with less effort. Solid for straight, simple runs; stranded when the cable has to curve or thread through pipe.
Direct Burial and Conduit
A direct-burial rating means you can bury the cable without first running conduit, which saves both material and labor on the job. The trade is that the jacket carries the whole burden — it has to resist moisture, sunlight, and corrosion on its own. That is why the PVC and PVC-nylon jackets on every roll here are listed as UV- and moisture-resistant.
Voltage, Temperature, and Ampacity
Every roll here is rated 600 volts, which is the standard ceiling for this class of wire. Temperature ratings tell you how hot the conductor can run — one roll here is rated 90°C, another spans -10℃ to 105℃ for the jacket itself. Ampacity is how much current the wire can carry, and 12-gauge copper handles a 20-amp circuit, which covers most outdoor outlets, lights, and small pumps.
FAQ
Can I use 12/2 UF wire for an outdoor outlet?
What is the difference between 12/2 UF and 12/2 UF-B wire?
How deep does 12/2 UF wire need to be buried?
Is solid or stranded 12/2 UF wire better for direct burial?
How many amps can 12/2 UF wire carry?
Can 12/2 UF wire be run inside conduit?
How much footage do I need for a shed run?
Does 12/2 UF wire come with a ground wire?
Is UF wire the same as Romex?
Why is the outer jacket on UF wire so hard to strip?
Final Thoughts: The Verdict
For most outdoor runs, the 12/2 uf wire winner is the FIRMERST 12/2 UF Wire 75ft because it pairs 75 feet of three-conductor, ETL-listed direct-burial cable with the strongest owner consensus in the lineup — quality and value lead the feedback, and the jacket slides through conduit without a fight. If your run crosses a full yard or feeds a gate motor, grab the PLESIU 150ft roll for double the footage and soft copper that bends easily. And for a short deck outlet or a single light fixture, the 50-foot solid copper roll is the one to reach for — three conductors, UL listed, sized for the job without leftover footage. Measure your trench once, add a margin for the climbs at each end, and buy the roll that covers it in one piece.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of September 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, KitchPrep earns from qualifying purchases. This does not affect which products we feature.




