PTR (Rectangular Tubular Profile) is a hollow carbon steel bar, made through hot-rolling. It's one of the most widely used structural materials in construction because of its combination of strength, weight, and price.
Tubular steel profiles became popular during the 20th century, when the construction industry discovered that a hollow section resists more load per kilogram of material than an equivalent solid bar — the same reason bird bones are hollow and still strong. Over time, PTR became a standard in Mexico and the southern United States for carports, warehouses, and light structures, since it offers the strength of heavier profiles with less material and lower cost.
High structural strength. Handles heavy loads and strong wind without bending.
Corrosion resistant. The carbon steel used in PTR is built to last for years outdoors.
Less weight than a solid profile. The hollow section gives strength without unnecessary weight.
Easy to weld and work with. Allows clean, precise joints between columns and beams.
Great cost-to-strength ratio. Delivers more structure for every dollar spent on material.
Clean, modern finish. Straight 90° lines that look great at home or at a business.
Centurion Improvements