Material Weight

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.

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