We Start at 4:30AM - Most Jobs within 24 hrs!

We are one of the largest independent rebar fabricators in southern California. We offer a wide range of products and services and a large inventory of rebar, (grade 60, A706 and epoxy coated) as well as the wire mesh products and concrete accessories.


Open to the Public!

We Deliver or Pick-it-Up


We will be your 'One Stop Shop' for all your needs

  •    Caissons

  •    Grade Beams

  •    Square, Round & Spiral Ties

  •    Assorted Mesh

  •    Other





Our team of highly skilled in house estimators and detailers combined with a strong experienced sales staff has the knowledge and expertise to help you with all of your reinforcing steel needs.

Our shops are equipped with state of that art fabrication equipment, a highly trained work force and a large fleet of delivery vehicles able to service projects throughout Southern California.

  • Custom Bending

  • Estimating

  • Detailing

  • Placing

  • Computer-generated Drawings

  • Job Site Delivery


Dextra Group BarTec® couplers
Bartec  is a parallel-threaded ​mechanical splicing system designed for the connection of concrete​ reinforcing bars from #4 to #18. ​
Designed and manufactured in compliance with Eurocode 2, BS 8110, DIN 1045, A​CI 318, IBC, AASHTO, ASME Sec III Div 2.


  • No reduction of the bar cross section area; Allows full ductile elongation of bars.

  • Easy installation, no torque wrench required.

  • One standard coupler for all splicing requirements (Standard/Position)manufactured under strict quality assurance plan ISO 9001 and ASME. Third party tested.

  • Full traceability of material origin and production batch.

  • Type 2 coupler suitable for seismic areas; Tested under reverse-cyclic conditions.

  • Solves bar congestion problems; No staggering of splices bars required.

  • We also supply "End Anchors", "Form Fixers", and certified CAL-TRANS Ultimate Splice Couplers

We have been servicing the Southern California region with rebar fabrication services for 30 years.  Our full-service bending and shearing shop is capable of accommodating even the most specialized requests.  JAMAC STEEL, INC. would appreciate the opportunity to help you secure your next project.
We have a huge inventory and can fulfill most orders in the same day. We also offer shipping from our yard to your job site.

Contact Us

533 E Belmont St., Ontario, CA 91761 Sales@Jamacsteel.com |  Tel: (909) 983-7592

Fax: (909) 983-2206