Store › 1" x 1" Galvanized Square Tube - 11 gauge - A500 Image 1 of 1 1" x 1" Galvanized Square Tube - 11 gauge - A500 from $7.50 OD 1” x 1" - ID 3/4” x 3/4” - Galvanized Square Tube - 11 gauge (1/8” wall thickness) - Grade A-500 Length: Select Length 12" 24" 36" 48" 60" 72" 84" 96" Quantity: Add To Cart Added! OD 1” x 1" - ID 3/4” x 3/4” - Galvanized Square Tube - 11 gauge (1/8” wall thickness) - Grade A-500