Material - Carbon Steel Shape - Square Color - Silver Feature - High Strength, Long Life, Premium Quality Finishing - Polished Dimensions - 3-3.5inch Specifications Size Average Wall Weight 1/2 x 18 gauge 0.049 inches 1.2446 mm 0.2896 lbs/ft 0.43098272 kg/m 1/2 x 16 gauge 0.065 inches 1.6510 mm 0.3642 lbs/ft 0.54200244 kg/m 5/8 x 18 gauge 0.049 inches 1.2446 mm 0.3729 lbs/ft 0.55494978 kg/m 5/8 x 16 gauge 0.065 inches 1.6510 mm 0.4747 lbs/ft 0.70644854 kg/m 3/4 x 20 gauge 0.035 inches 0.8890 mm 0.3343 lbs/ft 0.49750526 kg/m 3/4 x 18 gauge 0.049 inches 1.2446 mm 0.4562 lbs/ft 0.67891684 kg/m 3/4 x 16 gauge 0.065 inches 1.6510 mm 0.5852 lbs/ft 0.87089464 kg/m 3/4 x 11 gauge 0.12 inches 3.0480 mm 0.9497 lbs/ft 1.41334354 kg/m 7/8 x 18 gauge 0.049 inches 1.2446 mm 0.5395 lbs/ft 0.802864478 kg/m 7/8 x 16 gauge 0.065 inches 1.6510 mm 0.6957 lbs/ft 1.0353156948 kg/m 1 x 20 gauge 0.035 inches 0.8890 mm 0.4533 lbs/ft 0.6745847412 kg/m 1 x 18 gauge 0.049 inches 1.2446 mm 0.6228 lbs/ft 0.9268285392 kg/m 1 x 16 gauge 0.065 inches 1.6510 mm 0.8062 lbs/ft 1.1997578168 kg/m 1 x 15 gauge 0.072 inches 1.8288 mm 0.8940 lbs/ft 1.330418616 kg/m 1 x 14 gauge 0.083 inches 2.1082 mm 1.006 lbs/ft 1.497092984 kg/m 1 x 13 gauge 0.095 inches 2.4130 mm 1.126 lbs/ft 1.675672664 kg/m 1 x 12 gauge 0.109 inches 2.7686 mm 1.251 lbs/ft 1.861693164 kg/m 1 x 11 gauge 0.12 inches 3.0480 mm 1.358 lbs/ft 2.020926712 kg/m 1 1/4 x 18 gauge 0.049 inches 1.2446 mm 0.7894 lbs/ft 1.1747566616 kg/m 1 1/4 x 16 gauge 0.065 inches 1.6510 mm 1.010 lbs/ft 1.50304564 kg/m 1 1/4 x 14 gauge 0.083 inches 2.1082 mm 1.288 lbs/ft 1.916755232 kg/m 1 1/4 x 12 gauge 0.090 inches 2.286 mm 1.421 lbs/ft 2.114681044 kg/m 1 1/4 x 11 gauge 0.12 inches 3.0480 mm 1.766 lbs/ft 2.628097624 kg/m 1 1/4 x 10 gauge 0.135 inches 3.429 mm 2.030 lbs/ft 3.02097292 kg/m 1 1/4 x 3/16 inches 0.188 inches 4.7752 mm 2.400 lbs/ft 3.5715936 kg/m