3 Square Galvanized Tube. 3″ x 3″ OD (outside diameter). 2-3/4″ x 2-3/4″ ID (inside diameter). 96 inch Long (8-ft). Galvanized (Inline hot dipped). Industrial fabrication & repairs. Widely used in industrial maintenance. Yield Point = 36,000. Tensile Strength = 58,000. Elongation in 2 = 23%. Data provided for reference only. Lengths may vary +/- 1/8 (Cutting saw blade thickness). 1-ft, 2-ft, 3-ft, 4-ft, 5-ft, 6-ft, 7-ft, 8-ft long or. We will send you the Item Direct Link. Or you can order just what you need custom. Our store is set for. Looking for a specific metal size and length?