Material Weight

In order to estimate the cost of material it is essential that you know the weight of different material gauges and types of material.   Below you will find a list of some common weights dealing with the metal industry and metal fabrication.  One of the key factors is knowing the weight factor because its the same for all gauges of like material.

Weight Factor – Weight Per Cubic Inch of Material

The weight factor is calculated by the following formula

(Weight) / (Width * Length * Thickness)

The nice thing about knowing the weight factor is you can easily determine the weight of any size of metal.  For example, 16 Gage sheet steel has a weight factor of 0.29032.  If you have a 36×96 inch sheet of 20 Gage Sheet Steel, the weight would be 0.0375*36*96*0.29032 resulting in 60 Lbs.  Knowing the weight factor of sheet steel you now can calculate all the weights very easily.

Gauge and weight chart for sheet steel. galvanized steel, stainless steel, aluminum and strip & tubing.

 Gauge US Standard Gauge Sheet Steel Galvanized Steel Stainless Steel Aluminum Strip & Tubing (inches) Gauge Decimal (inches) Weight (lb/ft2) Gauge Decimal (inches) Weight (lb/ft2) Gauge Decimal (inches) Weight (lb/ft2) Gauge Decimal (inches) Weight (lb/ft2) Gauge Decimal (inches) 44 0.0047 43 0.0049 42 0.0051 41 0.0053 40 0.0055 39 0.0059 38 0.0063 0.0060 0.0062 0.0040 37 0.0066 0.0064 0.0066 0.0045 36 0.0070 0.0067 0.0070 0.0050 0.004 35 0.0078 0.0075 0.0078 0.0056 0.005 34 0.0086 0.0082 0.0086 0.0063 0.007 33 0.0094 0.0090 0.0094 0.0071 0.008 32 0.0102 0.0097 0.0102 0.0080 0.009 31 0.0109 0.0105 0.0109 0.0089 0.010 30 0.0125 0.0120 0.500 0.016 0.656 0.0125 0.0100 0.141 0.012 29 0.0141 0.0135 0.563 0.017 0.719 0.0141 0.0113 0.160 0.013 28 0.0156 0.0149 0.625 0.019 0.781 0.0156 0.0126 0.178 0.014 27 0.0172 0.0164 0.688 0.020 0.844 0.0172 0.0142 0.200 0.016 26 0.0188 0.0179 0.750 0.022 0.906 0.0187 0.756 0.0159 0.224 0.018 25 0.0219 0.0209 0.875 0.025 1.031 0.0219 0.0179 0.253 0.020 24 0.0250 0.0239 1.000 0.028 1.156 0.0250 1.008 0.0201 0.284 0.022 23 0.0281 0.0269 1.125 0.031 1.281 0.0281 0.0226 0.319 0.025 22 0.0313 0.0299 1.250 0.034 1.406 0.0312 1.26 0.0253 0.357 0.028 21 0.0344 0.0329 1.375 0.037 1.531 0.0344 0.0285 0.402 0.032 20 0.0375 0.0359 1.500 0.040 1.656 0.0375 1.512 0.0320 0.452 0.035 19 0.0438 0.0418 1.750 0.046 1.906 0.0437 0.0359 0.507 0.042 18 0.0500 0.0478 2.000 0.052 2.156 0.0500 2.016 0.0403 0.569 0.049 17 0.0563 0.0538 2.250 0.058 2.406 0.0562 0.0453 0.639 0.058 16 0.0625 0.0598 2.500 0.064 2.656 0.0625 2.52 0.0508 0.717 0.065 15 0.0703 0.0673 2.813 0.071 2.969 0.0703 0.0571 0.806 0.072 14 0.0781 0.0747 3.125 0.079 3.281 0.0781 3.15 0.0641 0.905 0.083 13 0.0938 0.0897 3.750 0.093 3.906 0.0937 0.0720 1.016 0.095 12 0.1094 0.1046 4.375 0.108 4.531 0.1094 4.41 0.0808 1.140 0.109 11 0.1250 0.1196 5.000 0.123 5.156 0.1250 5.04 0.0907 1.280 0.120 10 0.1406 0.1345 5.625 0.138 5.781 0.1406 5.67 0.1019 1.438 0.134 9 0.1563 0.1495 6.250 0.153 6.406 0.1562 0.1144 1.614 0.148 8 0.1719 0.1644 6.875 0.168 7.031 0.1719 6.93 0.1285 1.813 0.165 7 0.1875 0.1793 7.500 0.1875 7.871 0.1443 2.036 0.180 6 0.2031 0.1943 8.125 0.2031 0.1620 2.286 0.203 5 0.2188 0.2092 8.750 0.2187 0.1819 0.220 4 0.2344 0.2242 9.375 0.2344 0.2043 0.238 3 0.2500 0.2391 10.00 0.2500 0.2294 0.259 2 0.2656 0.2656 0.2576 0.284 1 0.2813 0.2812 0.2893 0.300 1/0 (0) 0.3125 0.3125 0.3249 0.340 2/0 (00) 0.3438 0.3437 0.3648 0.380 3/0 (000) 0.3750 0.3750 0.4096 0.425 4/0 (0000) 0.4063 0.4062 0.4600 0.454 5/0 (00000) 0.4375 0.4375 0.5165 0.500 6/0 (000000) 0.4688 0.4687 0.5800 7/0 (00000000) 0.5000
• 1 ft2 = 0.0929 m2
• 1 lb = 0.4536 kg

http://www.engineeringtoolbox.com/gauge-sheet-d_915.html

MIE Trak ERP uses weight factors when calculating material costs.  MIE Solutions provides software resources to help you manage your direct and indirect labor throughout the product life cycle from quoting and estimating, job costing to invoicing.

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Author: MIE Solutions

David Ferguson has over 20 years of experience in the manufacturing and fabrication industry. David Ferguson has been to over 100 manufacturing companies helping and guiding them to be more efficient and cost effective. As a child in Junior High School David Ferguson found a passion for the early computer systems, which would drive much of his future work. David Ferguson created and sold his first computer program, Arrow Data Systems, which was an early CAD/CAM system for the Apple 2e Computer. In the late 1980's after seeing his father (a sheet metal manufacturer) come home many nights estimating, David Ferguson saw an opportunity to optimize his effort through computer technology. Shortly thereafter the FabriTRAK Production Control package was developed. The Quote It! estimating package was developed out of the FabriTRAK system to become one of the leading sheet metal estimating packages in the world. David Ferguson has always had a passion for developing software to make the manufacturing process simpler, faster and more efficient. Prior to founding MIE Solutions David Ferguson worked with his father at Alco Sheet Metal, METALSOFT Inc. and was a consultant at Toyota Motors Sales. David Ferguson has his Masters in Computer Science and Mathematics from California State University, Long Beach.