A 1-inch pipe is not 1 inch across: Schedule 40 pipe in that size measures about 1.315 inches on the outside, while 1-inch round tube measures exactly 1 inch. The difference is small on paper but decides whether parts fit together.
Pipe is sold by nominal pipe size and schedule, built around flow and pressure. Tube is sold by true outside diameter and wall thickness, and it is typically chosen for structural and mechanical work where exact dimensions and finish matter. Mixing the two up is a common reason telescoping parts, handrail fittings, and clamps fail to fit.
Metal Supermarkets Atlanta in Marietta stocks pipe and round tube, cut to length with no minimum order, for fabricators, contractors, and hobbyists across Cobb County, Roswell, Woodstock, and Northwest Atlanta. The counter team can match dimensions against an old part or fitting before cutting. Both shapes cover projects from handrails to equipment frames.
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Authentic side-by-side photo of a length of Schedule 40 pipe and a length of round tube with a tape measure or calipers across the ends, shot at the Marietta location. A carousel showing the two cross-sections works well on Instagram. Real photos strongly preferred over stock. No Google Drive image folder is set up for this client yet, so request a real photo from the Marietta location.
Canva text suggestion: "1-Inch Pipe Measures 1.315 Inches Across" or "Pipe or Tube? Measure Before You Order"