When it comes to outdoor or underground electrical projects, choosing the right wire is key to safety and durability. If you're planning to run power to garden lights, a shed, a garage, or a water pump, 12-2 UF-B underground feeder wire is one of the most popular and reliable options.
But here's a common question we hear all the time:
"Can you buy underground wiring 12-2 UF-B by the foot?"
The answer to this question can save you money, reduce waste, and make your project go a lot smoother. In this article, we'll break it all down for you step-by-step.
What Exactly Is 12-2 UF-B Underground Wire?
UF-B wire (Underground Feeder Cable) is specially designed for outdoor and underground electrical wiring. It's tough, weather-resistant, and safe for direct burial in the ground without extra conduit (though conduit can add extra protection).
How it's built:
- 12 AWG wire size: This means it's 12-gauge, perfect for 20-amp circuits.
- 2 insulated wires: One black (hot) and one white (neutral).
- 1 bare copper ground wire: For safety and grounding.
- Outer jacket: A tough, moisture-resistant sheathing that protects everything inside.
What "12-2 UF-B" means:
- 12 = The gauge of the wire (12 AWG).
- 2 = Two insulated wires inside (plus a ground wire).
- UF-B = Underground Feeder, for direct burial or outdoor use.
This type of cable is commonly used for outdoor lighting, detached garages, pool pumps, and other outdoor circuits.
Can You Buy 12-2 UF-B Wire by the Foot?
Yes, absolutely!
Most suppliers and hardware stores allow you to buy 12-2 UF-B wire by the foot, which is super convenient for small projects.
Why buying by the foot matters:
- Saves money: Buy only what you need-no extra leftovers taking up space.
- Reduces waste: Perfect for small repairs or upgrades.
- Flexible: Easier to handle and transport than a full roll.
Buying Options: Pros & Cons
| Buying Option | Pros | Cons |
|---|---|---|
| By the foot | - No waste - Cost control - Great for small jobs |
- Price per foot is slightly higher |
| Full roll (250 ft) | - Bulk discount pricing - Best for large projects |
- Harder to store - May have leftover cable |
💡 Pro Tip:
- Small projects → Buy by the foot.
- Large projects → A full roll is usually more cost-effective.
How to Figure Out How Much Wire You Need
Before you buy, you'll need to calculate how much wire your project requires. Here's a simple step-by-step guide.
Step-by-step guide:
- Measure the distance:
Use a tape measure to find the distance from your power source (like your panel) to the equipment you're wiring.
- Add extra for bends and connections:
Add 10–15% extra length for routing around obstacles and making secure connections.
- Consider the wire path:
If the wire needs to go around corners, add a few extra feet for each bend.
Quick Formula:
Total Length=Measured Distance+(Measured Distance×10%)
Example:
If your measurement is 50 feet:
50+(50×10%)=55 feet total
Price Guide
Typical Price Range:
- By the foot: $1.50 – $2.20 per foot
- 250-ft roll: $280 – $380 per roll
What affects the price:
- Copper market prices
- Quantity purchased (bulk discounts)
- Certification (UL or CUL certified cables usually cost slightly more)
- Shipping and handling fees
Safety Tips for Installation
Even though UF-B wire is safe for direct burial, following proper installation rules is critical to avoid hazards.
- Bury deep enough:
NEC code requires at least 24 inches deep for direct burial.
- Use conduit for extra protection:
In areas with heavy traffic or rocky soil, PVC conduit is highly recommended.
- Stay clear of other utilities:
Keep your wiring away from water pipes and gas lines.
- Hire a licensed electrician:
Always have a professional inspect your work for safety and code compliance.
⚠️ Safety first! Proper installation prevents future failures and keeps everyone safe.
Best Place to Buy UF-B Wire
Looking for a trusted supplier for 12-2 UF-B underground wire?
At Dongguan Greater Wire & Cable Co., Ltd., we provide top-quality products with full UL and CUL certifications, ensuring safety and reliability for every project.
Why choose us:
Full range of certified UF-B wires.
Flexible purchasing options: buy by the foot or full rolls.
Competitive pricing thanks to a stable copper supply chain.
Global shipping with excellent customer support.
📞 Contact Us Today!
Tel / WhatsApp / WeChat:
+86 135 1078 4550 / +86 136 6257 9592
Email:
manager01@greaterwire.com
We're here to help you get the right wire, at the right price, with expert guidance for all your underground wiring needs.