Ohio Wire Buyers buys reusable surplus NM-B cable from businesses anywhere in Ohio, including full coils, boxed coils, partial reels and usable cut lengths. To sell Romex or another brand of nonmetallic-sheathed cable, send photos of the labels and jacket print with your footage list; we review the material for a written offer before pickup.
What exactly is NM-B cable?
NM-B is a nonmetallic-sheathed cable assembly: insulated copper circuit conductors and a bare equipment grounding conductor enclosed by an outer jacket. Southwire's specification lists PVC conductor insulation with a nylon covering, paper components and a PVC outer jacket. It identifies UL 719 as the nonmetallic-sheathed cable standard and rates the cable at 600 volts.
Romex® is a registered trademark of Southwire. We buy all NM-B brands, including Southwire Romex® SIMpull®, Cerrowire CerroMax and Encore, without claiming manufacturer affiliation or authorization. Use the actual brand on the label when listing your inventory.
A label reading 12/2 with ground means two insulated 12 AWG circuit conductors plus the equipment grounding conductor; 12/3 has three insulated circuit conductors plus ground. The slash count does not include that bare ground. Keep NM-B separate from other wire and cable we buy, even when the conductor gauges match.
How do jacket colors identify the cable?
Color helps you sort a pallet, but the printed legend confirms the product. NEMA's Bulletin No. 94 says size-coded NM-B jackets began appearing in 2001 and that the scheme is not required by the NEC or UL 719. Do not reject an older-looking coil or assign its gauge from color alone.
The following colors are listed on Cerrowire's current CerroMax product page. The applications are examples, not circuit-sizing instructions; the installation must suit the cable and applicable code.
| Jacket color | Size or configuration shown by Cerrowire | Typical application to identify in your lot |
|---|---|---|
| White | 14/2 | Residential lighting and switch wiring |
| Light blue | 14/3 | Lighting or fan wiring requiring an additional insulated conductor |
| Yellow | 12/2 | Residential receptacle branch wiring |
| Purple | 12/3 | Branch wiring requiring an additional insulated conductor |
| Orange | 10/2 | Larger-load branch wiring without an additional insulated conductor |
| Pink | 10/3 | Appliance wiring requiring an additional insulated conductor |
| Black | 8, 6 or 4 AWG | Larger-load cable; read the print for gauge and conductor count |
Blue, purple and pink coils should not be lumped into an unidentified specialty-wire pile. Photograph their legends just as you would yellow coils. Our guide to reading cable jacket print explains what to capture; separate 14 and 12 AWG surplus by conductor count as well as gauge.

What do the temperature rating and dry-location limits mean?
NM-B's 90°C conductor insulation does not make it a cable you can rate solely from the highest-temperature ampacity column. Southwire and Cerrowire specify that its ampacity is limited to the 60°C conductor rating. Terminations and conditions of use govern the actual rating; a surplus inventory description is not an installation approval.
NM-B is intended for dry locations. Do not describe leftover cable as suitable for burial simply because it has an outer jacket. Southwire's gray-jacketed UF-B underground feeder cable is a separate product whose specification permits direct burial; confirm UF-B on the print rather than assuming every gray cable qualifies.
Do not strip NM-B to market its inner wires as THHN building wire. Southwire states that the insulated conductors inside its NM-B are not individually listed or marked as THHN and cannot be installed apart from the complete cable assembly.
Which coil lengths and partial reels can you sell?
Southwire's 12/2 NM-B product options include 25-, 50-, 100- and 250-foot coils and a 1,000-foot spool. Those are verified packaging examples, not a promise that every gauge or brand has every put-up. We review factory coils, boxed coils, partial reels and usable continuous cut lengths.
An original package label describes the factory quantity, not necessarily today's balance. If a coil has been opened, state whether the remaining footage is measured or estimated. Do not list the original length as remaining stock unless it is still complete.
Keep separate lengths separate in the inventory. A total assembled from many short offcuts is not equivalent to one continuous run. Where sequential footage marks are readable, photograph both ends; see our remaining-footage guide before attempting a weight-based estimate or unwinding a reel.
What makes surplus NM-B reusable rather than scrap?
Preserve the jacket, conductor insulation and identifying print. Disclose flattened sections, cuts, exposed copper along the run, heat discoloration, heavy contamination or questionable storage history. Put questionable lengths beside the clean stock rather than concealing them inside a bundle.
Unused project leftovers and cable removed from a building need different descriptions. Installed cable may have staple damage, splices or an uncertain exposure history. Used cable is considered only if it remains reusable; qualified personnel should handle de-energization and removal.
There is no published minimum cut length here or automatic acceptance based on a photo. Continuous footage, configuration, condition, documentation and resale demand affect the review. If the cable is not reusable, we say so; the distinction between surplus value and scrap price helps explain when a scrap metal recycler is the right buyer.
What should you send for an NM-B offer?
Start with a whole-lot photo, then photograph each different brand, gauge and conductor count. For sealed packages, capture the label without opening them. For opened coils, show the jacket legend, accessible cut ends and remaining cable.
| Send this detail | Why it matters for NM-B |
|---|---|
| Brand, NM-B marking, gauge and conductor count | Distinguishes similar-looking coils and confirms the cable family |
| Package label and quantity of packages | Establishes original put-up and how the lot is grouped |
| Remaining continuous footage for each opened coil | Separates usable runs from accumulated offcuts |
| Cut-end and jacket-condition photos | Shows conductor construction and visible damage |
| Storage and installation history | Distinguishes unused stock from removed or exposed cable |
| Invoice, purchase order or closeout paperwork | Supports seller and ownership verification |
Label estimates honestly and identify any missing tags. We may ask for clearer photos or more information before making an offer. Do not spend time stripping cable, cutting coils into matching pieces or creating new packaging just to make the lot look uniform.
How should Ohio builders organize project leftovers?
For residential or apartment-project closeouts, sort unused NM-B by configuration before combining material from several jobs. Keep full coils with their factory labels, opened coils with their footage notes, and removed cable in a separate group. The project-closeout wire checklist helps prevent identified stock from disappearing into mixed debris.
Builders and general contractors with surplus wire should confirm which business owns the cable, especially where an electrical subcontractor supplied it. Retain an invoice, purchase order, closeout record or company letter supporting the sale. Do not offer material merely because it remains at the jobsite.
How are the offer and Ohio pickup handled?
Ohio Wire Buyers reviews your photos and footage list, then replies with questions or a written offer before pickup. Payment method and timing are confirmed in writing before pickup. We verify the seller and ownership, keep a written purchase record and check the pickup count against the written terms.
We arrange pickup at your Ohio jobsite, warehouse, plant or yard; we have no Ohio street address, office or yard where sellers can bring material. Tell us whether the material is palletized, upstairs, behind a locked storage cage or mixed with other inventory so access can be discussed. The selling process explains the remaining steps.
Ready to sell Romex or mixed-brand NM-B leftovers? Request an offer for your cable lot with label photos, jacket print and remaining footage, or call 951-403-5738. Keep the cable intact while it is reviewed for resale and reuse.
Frequently asked questions
Can I sell opened boxes of Romex cable?
Yes. Ohio Wire Buyers reviews opened boxes and partial coils when the NM-B cable remains reusable. Photograph the original label and jacket print, and identify the remaining footage as measured or estimated. An opened package is not automatically scrap, but the original box length does not establish how much cable is left. Keep each continuous length separate and disclose any damage.
Do you buy NM-B brands other than Southwire?
Yes. We buy reusable surplus NM-B from all brands, including Cerrowire and Encore as well as Southwire Romex SIMpull. Romex is a registered trademark of Southwire, not the generic name for every nonmetallic-sheathed cable. Send the actual manufacturer name and cable marking rather than describing an entire mixed-brand lot as Romex. Condition, configuration and footage still need review.
Is white-jacketed NM-B automatically too old to sell?
No. Jacket color alone cannot establish age, conductor size or reusability. NEMA explains that NM-B color coding is not required by the NEC or UL 719, so the printed legend controls identification. Send a readable print photo and describe storage conditions. Unknown history, damaged insulation or missing identification may prevent a reuse offer, regardless of the jacket color.
Should I remove the jacket before selling leftover NM-B?
No. Keep reusable NM-B intact as a cable assembly. Southwire states that the insulated conductors inside its NM-B are not separately listed or marked as THHN and cannot be installed independently of the complete cable. Removing the jacket therefore does not turn Romex into surplus THHN. If the cable is no longer reusable, a scrap metal recycler may be the appropriate buyer.
Can demolition crews sell NM-B removed from a building?
Used cable is considered only if it remains reusable; removal does not establish that condition. Have qualified personnel handle de-energization and removal, and disclose staple damage, splices, heat exposure and the installation history. Send photos and ownership documentation before arranging transport. Ohio Wire Buyers will say when the material is not suitable for reuse rather than treating every removed length as saleable product.
Sources and further reading
- Southwire Romex Brand SIMpull Copper Type NM-B Cable specification
- Cerrowire CerroMax NM-B product specifications and jacket colors
- NEMA Bulletin No. 94: Type NM-B Cable Jacket Color Coding
- Southwire 12-2 CU NM-B with ground: packaging options
- Southwire UF-B Copper Cable specification
- Southwire: Things You Didn't Know About Romex Brand SIMpull NM-B Cable
