Category 01 — Building wire
SELL SURPLUS BUILDING WIRE IN DENVER
Building wire is the largest share of what leaves a Denver jobsite unused: partial reels of THHN pulled short, XHHW feeders left over after a gear change, grounded conductors still banded in factory wrap. We buy that wire by the reel, the coil or the carton.
What we buy in this category
Copper and aluminum building wire in single-conductor and multi-conductor constructions: THHN, THWN, THWN-2, XHHW and XHHW-2, plus bare copper, insulated copper, grounding wire, and welding cable when it comes in with a building-wire lot.
We also review MC, AC, tray cable, VFD cable, TC/TC-ER, PLTC, SER, SEU, URD and USE-2, along with SOOW and flexible cable, control and instrumentation cable, communication and shielded cable, fire-alarm cable, low-voltage cable and specialty industrial cable. Send the tag photo even when the legend is faded — the printed sequence usually tells us the insulation, jacket and voltage class.
Read the tag before you call
The jacket legend is the fastest way to price a reel. A typical line reads something like 12 AWG THHN/THWN-2, 600V, stranded copper, with the manufacturer and a footage marker. Photograph that legend flat, in daylight, with the reel flange and any handwritten footage note in a second photo.
If the wire is unmarked, send the conductor count, the approximate outside diameter and a close-up of the cut end. We will tell you whether the reel is worth quoting or whether it needs to be sampled first.
Constructions in this category
- THHN / THWN Thermoplastic, nylon-jacketed; dry locations for THHN, wet or dry for THWN.
- THWN-2 90°C wet-rated, common on modern commercial feeders and branch circuits.
- XHHW / XHHW-2 Cross-linked polyethylene; XHHW-2 is rated for wet and dry locations at 90°C.
- Bare and insulated copper Grounding conductors, bare neutral and insulated copper in coils or on reels.
- Aluminum equivalents Same constructions in aluminum, usually larger gauges for the same ampacity.
Sizes we see most often
From #14 through 1000 MCM, in single-conductor and multi-conductor constructions. Mixed lots are welcome — list each size separately so the footage can be priced against the right gauge.
- #14
- #12
- #10
- #8
- #6
- #4
- #2
- #1
- 1/0
- 2/0
- 3/0
- 4/0
- 250
- 300
- 350
- 400
- 500
- 600
- 750
- 1000
What to include with your quote request
These details turn a question into a number. Anything you do not know can be estimated; say that it is an estimate.
- Gauge or MCM for every reel, and conductor count for multi-conductor cable
- Copper or aluminum, stranded or solid
- Voltage rating printed on the tag (600V is typical for building wire)
- Approximate footage per reel, or the factory length still banded
- Whether the reel is full, partial, or a coil/carton take-off
Not sure whether it is worth quoting?
Send it anyway. A short reel, an odd construction or a faded tag costs nothing to review, and the answer is usually more useful than the guess.
Do you buy partial reels of THHN?
Yes. Partial reels with a readable tag and a known or estimated remaining footage are quoted every week. Cut lengths and loose coils are reviewed too, but the footage estimate matters more than the reel.
Is aluminum building wire worth quoting?
Often, yes, particularly larger feeder sizes in XHHW-2 aluminum. Send the tag and gauge; aluminum is priced on its own basis, not as a discount off copper.
What if the footage is unknown?
Give us the reel diameter, the wire gauge and how full the reel looks. We may ask for one more photo of the wrap or a weight ticket from the yard, and quote on an estimated range.
Related pages
Request a quote
Sell your building wire
Send the details and photos for a purchase quote. The form goes to the same inbox as every other category, and the review starts as soon as it arrives.
Quote request — Building Wire
Eight photos are enough for most lots. Tag, legend, cut end and a wide shot per reel.
Sell your surplus wire
Have a building wire reel to move?
Send the details and photos. We will tell you what the material is worth and how a pickup would work.