Free Online Frame Calculator

Calculate the bending moment and shear force of your frame structure

About this Frame Calculator

This free online frame calculator will generate and find the bending moment and shear force diagrams of a 2D frame structure. The free version allows you to input frames with a maximum of 3 members with applied point loads and moments for 2D frame analysis. You can also control settings such as units, display settings of framing members and nodes etc. by simply clicking the 'Settings' button.

This frame calculator offers an easy-to-use structural analysis program which allows users to apply loads to a structure and interpret the results in an easy and clean diagrams. To fully utilise the power of SkyCiv structural 3D software, check out our professional plans. Apart from unlimited members and loads, you can also select materials such as wood and steel to perform frame analysis - making it much more than a simple frame calculator. It also allows the user to save and load projects, saving much time in re-entering the frame structures!

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Structural Analysis Software

SkyCiv 3D Structural allows you to analyse shear, bending, deflection, stress and much more. Build your model and analyse your structure faster than ever!

Unlimited Loads & Supports

Add as many supports, loads, and members with on of SkyCiv paid plans. Tackle any truss designs with this powerful and fast truss software.

Fully Integrated Design Software

Import design modules such as AISC, ACI, Eurocode, Australian Standards, CSA, NDS and much more, to complete all your designs in one place.

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About SkyCiv

SkyCiv offers a wide range of Cloud Structural Analysis and Design Software for engineers. As a constantly evolving tech company, we're committed to innovating and challenging existing workflows to save engineers time in their work processes and designs.

Responses (11)

  1. nabil
    July 26, 2019 at 11:26 pm · Reply


  2. Alan
    September 22, 2015 at 10:16 pm · Reply

    Hey all, just to let you know, it is the second day that I’m trying to use your feature but it doesn’t work. A server problem message appear. …:)…see ya

    • Paul
      September 22, 2015 at 10:24 pm · Reply

      Hi Alan. That’s strange because it seems to be working just fine from my end. The server is definitely available right now — there is either something wrong with your setup or your browser. Please ensure you have added a support (as it doesn’t look like there is one as well as a section). Although it should mention the error if it was that simple. It might also interest you to know that we have a free beam calculator:

      • Alan
        September 23, 2015 at 5:03 am · Reply

        Hello Paul,
        Just to let you know, still the same problem, I even tried in another browser, but still doesn’t work….

        • Paul
          September 23, 2015 at 9:31 am · Reply

          Hi Alan :) Sorry for the issues you’re experiencing. Let’s get to the bottom of this – I’ve emailed you. Hope to hear from you soon.

  3. Vengatesh Hari
    July 1, 2015 at 4:38 pm · Reply

    For frame section at least 3 members is needed..but in free calculator..2 members only worst.please make it as three members

    • Paul
      July 1, 2015 at 8:02 pm · Reply

      Hi there. Many frames have two members like this one.

      • Vengatesh Hari
        July 1, 2015 at 8:11 pm · Reply

        At least make it as 3 member in free would be very helpful for students.

        • Paul
          July 2, 2015 at 10:39 am · Reply

          Two members is sufficient for many problems. Maybe you should have a look at SkyCiv Frame as it can do 10 members! It comes with the SkyCiv Student account along with SkyCiv Truss and SkyCiv Beam.

      • Christy McGowan
        July 13, 2015 at 12:01 am · Reply

        This unhelpful reply made me not want to give you my money, I will now not buy this product.

        • Paul
          July 13, 2015 at 12:32 am · Reply

          Hi Christy. The free calculator can only do 2 members at this stage. I showed a frame scenario which has 2 members as it may help others to see that it can handle a range of scenarios. Sorry if it cannot handle your particular analysis but this is why we have SkyCiv Frame. More members puts more stress on the server and paid members get priority for this. Try out the demo account as there are some pre-loaded files in there so you can see how it works.

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