Free Online 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 of this powerful engineering tool allows users to input frames with a maximum of 3 members with applied point loads and moments for 2D frame analysis. Users can also control settings such as units, display settings of framing members and nodes etc. by simply clicking the 'Settings' button.

This free online frame calculator will only allow certain features (3 members, 2 supports, 2 point loads and 2 distributed loads only). More features are available in the paid SkyCiv Frame Calculator, such as deflection and stress results, as well as unlimited supports, members and loads.

The 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. Not what you're after? SkyCiv offer a range of other structural analysis software such as our SkyCiv Beam and SkyCiv Truss calculators!

Result Type (unit):

Unit System:

Section Templates

Clear Others

Database

Custom

Height (h):

Width (b):

Thickness (t):

Horizontal Thickness (t):

Diameter (D):

Top Width (TFw):

Top Thickness (TFt):

Bottom Width (BFw):

Bottom Thickness (BFt):

Web Thickness (Wt):

Left Thickness (LFt):

Bottom Width (Bb):

Bottom Int. Width (Bbw):

Bottom Thickness (Tb):

Web Thickness (Tw):

Top Width (Bt):

Top Int. Width (Btw):

Top Thickness (Tt):

Gap (g):

Separation (s):

Fillet (r):

Enter a row for each point.

Fillet:

Thickness:

Enter a row for each point.

Original
Transformed

Geometric Properties

Area			²
Centroid_z
Centroid_y

Moment of Inertia

I_z			⁴
I_y			⁴
I_zy			⁴
I_zp			⁴
I_yp			⁴
α			°

Elastic Section Moduli

S_z			³
S_y			³

Shear Properties

A_z			²
A_y			²
Q_z			³
Q_y			³

Torsion Properties

J			⁴
r
I_w			⁶

Geometric Properties*

Area			²
N-Axis_z
N-Axis_y

Moment of Inertia*

I_z			⁴
I_y			⁴
I_zy			⁴
I_zp			⁴
I_yp			⁴
α			°

Statical Moment of Area*

Q_z			³
Q_y			³

*Properties based on the Transformed-Section method.

All materials have been transformed to:

Diagram Tips

Diagram Pan: Right Click Drag (or Shift + Click Drag)
Rotate: Left Click Drag
Zoom: Scroll
Scale Diagram: S + Scroll
Select Multiple: Ctrl + Click
Click nodes, members and loads to select/edit
Click and drag between nodes to add members
Drag labels to move
Hover over diagram for results at that point
Click a member to view only its results

Scale:
auto

Preview Mode

Need More Functionality?

SkyCiv offers a Student account, offering the SkyCiv Frame Software - allowing you to solve larger structures, with more members, supports and forces. SkyCiv also offers a full 3D Structural Analysis Software in the cloud, complete with professional reporting, 3D Rendering and Stress Analysis. If you have any questions with the account types, simply contact us.

Alan

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
  
  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: http://bendingmomentdiagram.com/free-calculator/
  - Alan
    
    Hello Paul,
    Just to let you know, still the same problem, I even tried in another browser, but still doesn’t work….
    - Paul
      
      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.
Vengatesh Hari

For frame section at least 3 members is needed..but in free calculator..2 members only allowed..so worst.please make it as three members
- Paul
  
  Hi there. Many frames have two members like this one.
  - Vengatesh Hari
    
    At least make it as 3 member in free calculator.it would be very helpful for students.
    - Paul
      
      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
    
    This unhelpful reply made me not want to give you my money, I will now not buy this product.
    - Paul
      
      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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