Weight Chart of Square Bar Thickness (MM)Weight in Kgs per length 12 feet long20 feet long 6X61.021.71 8X81.833.05 10X102.674.45 12X124.146.89 14X145.649.39 16X16-12.26 20X20-19.15 25X25-29.95 30X30-43.10 32X32-49.04 40X40-76.62 50X50-119.68