Often custom sheet metal fabrication is required to product complicated HVAC duct work, metal roofs, structural siding or column wraps, and sheet metal shop drawings that contain precise geometry of the folded and flat sheet is required to ensure the the end product is manufactured as needed by the engineer. This type of drafting is very specialized and requires a true knowledge of the machines that cut, bend and punch sheet metal.
With accurate sheet metal shop drawings, the metal fabricating shop will experience less error and scrap, as often the geometric data is sent from the CAD file directly to a cutting or bending machine. Sheet metal for duct work is first drafted as required by the HVAC routing plan, along with all junctions, bends and risers necessary. Our drafters use CAD software to unfold sheet metal parts and have full training in creating corner and edge reliefs; adjustments for bend allowances; creating hems and hinges; and accurate placement of all knockouts, countersinks or tapped holes.
With precise drafting of sheet metal, we can provide the data required for laser cutting, CNC or CAM fabrication machines. Shop drawings are very different from architectural and engineering drawings, due to the detailed dimensions and instructions concerning material, finish and assembly. We work with manufacturers, contractors and suppliers to convert engineering plans into fabrication shop documentation.
We handle all phases of construction sheet metal drafting and detailing; even specialized restaurant equipment or custom precision machinery will require sheet metal shop drawings. Contact us for your sheet metal shop drawing package.