PolyBeam vs WinBeam

PolyBeam and WinBeam are both simple to use beam calculators where the user easily defines supports, loads and section properties. Based on these inputs the reactions, sectional forces and deflections are calculated. In PolyBeam there is an additional option to add load combinations and steel sections can directly be verified in both ultimate limit state (ULS) and serviceability limit state (SLS) according to Eurocode 3 or Eurocode 5. These options have been included very elegantly which has retained the simplicity in the interface.

In both PolyBeam and WinBeam a short and clear PDF can be generated based on the calculations. This PDF document contain all the relevant documentation for the beam calculation, see example here.

Click here to request a free trial or student version of PolyBeam.
Below some of the similarities and differences between PolyBeam and WinBeam are listed.




Easy and fast to use

Easy export to PDF

Elastic sectional forces

Plastic sectional forces

Spring supports

Load combinations

Natural frequency analysis

Design check

Fire Design check

Section catalog




Eurocode 3 and Eurocode 5

Eurocode 3

European Timber and Steel

Free Trial!



American Steel

Features (not included in WinBeam)

PolyBeam still has the simplicity known from WinBeam, and is ideal for small projects involving beams. In addition to the well-known features from WinBeam, Polybeam has a few new features such as:

  • Plastic hinges
  • Load combinations
  • Eurocode 3 and 5 design check
  • Natural Frequency Analysis
  • Eurocode 3 fire design check

Plastic hinge allow for a redistribution of sectional forces when the capacity of a statically indeterminate beam is reached in one section. In some cases, this can increase the capacity of the beam by more than 20%. This redistribution can be avoided by manually entering a moment of inertia of the beam.

Load combinations allow the user to define both SLS and ULS load combinations by multiplying the characteristic loads by a user defined factor. With this addition it is easier to use to design the beam. If the user doesn’t define any load combinations, then all loads will be applied to the structure like WinBeam and the both ULS and SLS will be determined.

Eurocode 3 design check the beam can be designed for shear, bending moment and lateral torsional buckling according to Eurocode 3, this feature makes it easy to choose the most optimal steel section.

Natural frequency analysis with this new feature it is possible to determine whether the beam is prone to vibrations. This is often of interest with floor separations and staircases.

Eurocode 3 fire design check the steel beam can be designed for shear, bending moment and lateral torsional buckling for the standard time-temperature curves (R30, R60, R120) or for a user determined steel temperature.