SPIRAL ROUND/FLAT OVAL, RECTANGULAR & SPECIALTY DUCT FABRICATOR Since 1981, Spiral Pipe of Texas (SPOT) has been a proven source for Custom Sheet Metal Fabrication. Specializing in Commercial Duct Fabrication, SPOT provides customers with Spiral Round, Spiral Oval, Rectangular Duct, Acoustical / Thermal Panels, Specialty Duct, as well as Custom Sheet Metal Work. Located in Fort Worth, Texas, we are well positioned to competitively ship products to any market in the US. For projects large and small, standard or custom, SPOT is ready to partner with you on your next project.