In Stock · Phoenix, AZ
Electrical Wire & Cable — Phoenix, AZ
We stock THHN/THWN wire, NM-B (Romex), and specialty cable in a full range of gauges — by the foot or on bulk spools. Contractors and homeowners welcome.
Buying Guide
Selecting the right wire starts with understanding your application. THHN/THWN-2 is the standard for conduit runs — available in solid and stranded, gauges #14 through #4/0 and larger. NM-B (Romex) is used for residential branch circuits in dry locations. For service entrance, we carry SER and SEU cable. For underground runs, we stock USE-2 and direct-burial cable. We sell by the foot for small jobs and by the spool for larger projects — ask our staff about bulk pricing.
What We Stock
THHN/THWN-2 wire — #14 to #4/0+
Solid and stranded conductors
NM-B (Romex) — 14/2, 12/2, 10/2, 12/3
SER / SEU service entrance cable
USE-2 underground cable
MC cable (metal clad)
Bulk spools available
Cut-to-length service
Why Buy from Black Diamond Supply?
Walk the floor — no counter wait
More depth than big-box stores
Expert staff who know electrical
All major brands in stock
Competitive pricing
Pros & DIYers welcome
Related Categories
electrical wire Phoenix AZTHHN wire PhoenixRomex Phoenix supplywire and cable Phoenixbulk wire spools Phoenixelectrical cable supplier Phoenix