Our Products and Services


Design & Engineering

At Metro Mechanical Supply, our team of talented engineering staff can take simple customer supplied concept information, drawings and produce a professionally designed product based on our knowledge of the materials, sheet metal fabrication and manufacturing technology. 

We offer engineering support services from the pre-prototype stage through production. We use the latest 2D and 3D CAD technology to deliver high precision sheet metal fabrication. It is our goal to produce for our customers a product design that provides perfect long-lasting function at an unbeatable price.

Sheet Metal Fabrication

Metro Mechanical Supply has been the industry sheet metal fabrication leader for over 41 years. We have all types of sheet metal equipment for efficient handling of your sheet metal parts. Our team of engineer staff will analyze your drawings & decide where the process starts: shear, punch or laser cut. We will help you with the material selection process from a variety of sheet metals across a wide range of strength, conductivity, weight, and corrosion-resistance. These materials include the traditional sheet metal, or materials such as stainless steel, phosphatized, galvalume, aluminum. Last but not least we will help you to selection from a variety of finishes, including anodizing, plating, powder coating, and painting.

Our sheet metal fabrication services include Laser Cutting, CNC Punching, Forming and Rolling, Welding, Powder Coating, Finishing, Metal Stamping and a variety of Machine Shop Services. Our highly-skilled craftsmen, best-in-industry tolerances, wide variety of available sheet metals, plus rapid turnaround not only meet but exceed our customer’s expectations. We take great pride not only in our commitment to quality, but also our proven track record of delivering effective and dependable fabrication services for our customers.

Pipe & Duct Fabrication

Metro Mechanical Supply is Oklahoma’s unsurpassed provider of lock-seam, high pressure Spiral pipe, Oval Spiral pipe and fittings. Our complete line of standard commercial and Industrial Spiral pipe, fittings, and custom fabrications are manufactured to meet all standard specifications and built to meet or exceed all SMACNA (Sheet Metal and Contractors National Association) standards. Our specialized tooling allows us to fabricate 16 GA to 28 GA spiral pipe as small as 3 inches and as large as 102 inches. You can expect and will get the best prices, quality, and on-time completion, whether you need a only a few fittings or a complete job lot for a large contract project.

Rectangular Duct & Fittings are fabricated to the latest SMACNA standards using prime grade, G-90 lock forming quality galvanized steel. Fittings are made from as drawn by contractor, shop drawings, or per mechanical engineers plans. Each duct can be labled by unit or zone for ease of placement at the jobsite. Rectangular duct has a variety end connections available that include S & Drive, Ward J Flange, Ductmate 45 connectors, or Transvers Duct Connector. It is most common to see rectangular duct fabricated with a 1″ internal insulation. Other options are bare uninsulated, 1/2″, 1 1/2″, or 2″ insulation. We can also provide you with Dual Wall duct where required with either a perforated or solid inner shell.

Roof Curbs

Standard Features:

  • Custom made to each unit model number or specifications given
  • G90 galvanized steel construction 18GA up to 10GA thickness (Unit size dependant)
  • 14” typical height
  • Solid welded seams
  • Internal rails for supply and return air plenums
  • Pitched to match roof slope
  • 6” flange at base for roof sealing requirements

Optional Features:

  • Height adjusted as required
  • Insulated
  • Integrated ribs to match metal roof
  • Treated Wood nailer
  • Cricket for water diversion

Curb Adapters

When given the manufacturer and the model number of both the existing rooftop unit and the new rooftop unit, the curb adapter will be designed to drop onto the existing roof curb and the new unit will rest on the structurally rigid curb adapter.


  • G90 galvanized metal 18 ga up to 10 ga (size dependant)
  • A solid welded perimeter structural shell
  • Welded internal supply transition or divider
  • Solid bottom with holes for supply and return positioned to match old unit curb
  • Fully insulated with 1” insulation
  • Adapter height will be as short as possible, but the height is determined at the design stage as larger airflows with radical offsets will require taller adapters.


Our extensive welding capabilities including Metal Inert Gas (MIG), Tungsten Inert Gas (TIG) and Spot Welding. Utilizing American Welding Society AWS standards, our highly trained and skilled welders assure that daily manufacturing operations are more consistent and traceable to ensure your products, parts, enclosures, and assemblies are welded properly, completely, and to your exact specifications. We use top of the line welding equipment . We can weld aluminum, steel or stainless steel, as well as exotic metals. We also have complete resistance welding, also known as spot welding capabilities. Our unique welding shop supports our custom sheet metal fabrication process


At Metra Mechanical Supply we can finish what you start with any metal product. We are able to apply a range of surface finishes to all of our fabricated parts and assemblies in order to comply with end-use application requirements or simply to provide a desired aesthetic appearance. We can guide you through some of the finishes we utilize including anodizing, electropolishing, plating, and powder coating, to select the best finish to your desire.


Committed to Quality, Committed to Service is not just a slogan. It is Metro Mechanical’s way of life. We are your custom metal fabrication company from start to finish! Once the product is ready we will package to your specifications or better! We understand that the product needs to be packaged securely so that it reaches it’s final destination in the same condition it leaves our facility.

We offers shipping for local deliveries via either our 26′ box truck, or small delivery truck. In addition to our in-house delivery options, Metro Mechanical offers a host of shipping options. Our facilities have the drive in capabilities for UPS, Fedex, and DHL, or (5) semi docks for box trucks or tractor trailers. We also utilize the expertise of most major truck lines, which we have accounts with, and will ship via customer preference.

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