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Bracket Calculators.
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  • Beam Deflection Calculator

  • No bracket will remain perfectly straight under even the lightest load. Even if a feather were placed on a 1/2” steel plate, the plate would bend under the weight. The bending would, however, be too small to notice and the plate certainly wouldn't be in any danger of failing.

    This calculator uses engineering beam theory to predict the deflection of a bracket under a given amount of weight. This is not intended to be a perfect representation of the behavior of a bracket under a load. It is only a tool to help you get an “idea.” There are several assumptions and simplifications that have been applied. Whenever possible we tried to make these assumptions as a “worst case scenario.”

      • Assumptions:
    • 1) The bracket will be supporting the entire weight of the countertop. In most applications, the countertop is overhung, with the main body of granite being supported by a knee wall or cabinet. When this is the case, the rigidity of the granite provides extra support so that the bracket is only supporting a fraction of the overhung weight.
    • 2) The bracket is ungusseted. A gusset adds significant strength to a bracket, but makes the calculations much more complex. This calculator is not a good indicator of the strength of a gusseted bracket.
    • 3) The bracket has no holes in the top. Holes weaken the bracket slightly but this is nearly always a negligible difference.

      Simplifications:
    • 1) The bracket is treated as a cantilevered beam.   The difference between a bracket and a cantilevered beam is shown below. Because of this simplification, this calculator does not account for any bending that may take place on the vertical leg.
      Cantilever Bracket
      Using the Calculator:

      The calculator has 5 fields for you to fill in.
    • 1) Material. Choose Steel or Aluminum.
    • 2) Load. This is the amount of weight the bracket will be supporting. You can calculate the weight of your granite overhang using our Granite Calculator. If you are using multiple brackets to support your granite, divide the total weight by the number of brackets.
    • 3) Length. Length of the bracket's horizontal leg.
    • 4) Width. Width of the bracket's horizontal leg. This is usually 2 inches.
    • 5) Thickness. Thickness of the bracket material. A thicker bracket is much better at supporting heavier loads.

      Deflection

      The deflection indicates how far the furthest edge of the bracket will go down under the applied weight. There are 2 deflections calculated, depending on where the weight is.
    • 1) Distributed load. This is the value that is of concern in most applications. This is when the weight (entered in “Load” above) is spread out over the entire length of the bracket.
    • 2) Point load at end. This assumes that all of the weight (entered in “Load” above) is at the very tip of the bracket.
      Bracket Calculation


    Calculator

    Material:
    Load:  pounds
    Length:  inches
    Width:  inches
    Thickness:  inches
     
    Short Run Pro provides this Beam Deflection Calculator as a service to website users. As previously stated there are assumptions and simplifications included in the calculations and therefore this service will not be able to calculate specific applications to exact accuracy. Calculations derived by use of this service may be used to determine deflection in general, but should not be relied upon in a user's specific application.
    Results:  
    Distributed Load:  inches
    Point Load at End:  inches



      Equations: The equations used in this calculator are given below.
      Distributed load deflection = Distributed load deflection

      Point load deflection = Point load deflection

      Where
    • E= Modulus of Elasticity (in pounds per square inch)
    • I= Moment of Inertia (in inches^4)
    • W= Load (in pounds)
    • l= The length of the bracket (in inches)



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Short Run Pro is proud to say that all our custom metal products including our brackets, steel angle, braces, supports, covers, housings, machined parts and other metal parts are made right here in the United States of America. When you order from SRP you can know that your parts are being made to USA quality standards and your satisfaction in mind.

Short Run Pro has developed state of the art design software to help you easily design brackets for your custom use. With the aid of Short Run Pro you can quickly draw out your requirement, look at your design in 3-D and email your design in many available formats to any email account for confirmation purposes. Short Run Pro Custom Design brings you the ability to design unique brackets, signs, industrial plates and covers without investing huge amounts in software systems to design your custom metal need. With Short Run Pro you can design your own special metal brackets to replace costly OEM fabricated parts. Short Run Pro also has custom drawing services available for Solidworks.

Short Run Pro needs a lead time of up to 14 business days to make your product. If you need the part sooner, the order can be expedited for an additional cost. We can make 1 part or thousands of metal brackets. We keep your custom bracket on file in our database so you can access the drawing in the future. Short Run Pro also will archive your drawing for use and reference in OEM engineering prints and the software used on Short Run Pro is compatible with most engineering drawing formats.

Short Run Pro offers a full line of standard run bracket designs to choose from in our catalog section. Should you require a special bracket, we can offer you design assistance to develop the bracket to your special needs. We can provide stamped metal brackets or laser cut metal fabrications. We provide black oxide finish or high quality black powder coat finish. We can produce your design out of many different material specifications including: carbon steel JIS S45C, JIS SS4400 , stainless steel JIS SUS304, aluminum alloys of different makes, brass JIS C2800, and much more! We produce quality, accurate parts to your specifications with excellent turn around time.

Short Run Pro specializes in the following metal fabrications: Angle Brackets, machined brackets, fabricated brackets, wall mount bracket, laser part, stamped part, laser cut part, mig welded part, bracket components, galvanized bracket, stamped machine part, sheet metal part, prototype design, formed parts, sheet metal forming, sheet metal stamping, sheet metal bending, proto, custom sheet metal, metal parts, steel brackets, press brake forming, machined parts, aluminum bracket, and more. Short Run Pro provides quality service and quality machined parts with your complete satisfaction in mind. Thank you for visiting our website and please let us know if we can help in anyway ? we want your business.

The information contained within all fabrication drawings created by Short Run Pro, LLC have not been verified for engineering purposes. Short Run Pro, LLC performs drawing and fabrication service based on customer specifications and cannot substantiate the function and loading capabilities of customer designs. An independent engineering firm should be consulted to verify use and loading calculations of SRP drawing designs.

Short Run Pro is proud to say that all our custom metal products including our brackets, steel angle, braces, supports, covers, housings, machined parts and other metal parts are made right here in the United States of America. When you order from SRP you can know that your parts are being made to USA quality standards and your satisfaction in mind.