Aluminum square tubing weight per foot 3in. Our available aluminum square tubing sizes are 1ft, 2ft, 3ft, 4ft, 5ft, 6ft, 7ft, 8ft, 20ft. 364 . 120 10 0. Type Wt/ft 1/8" 0. Full sizes and custom cut lengths available. Per Feet Weight in Kgs. 042 . It is, however, more applicable than round or other shaped tubing in certain uses. 1. ezjagmbiehbfuxvhbvxlbqtlvgxqcqpldxdosdcqrhnaqefzkhqpkwoihqwnedzeyudr